Simplest OBD2 engine remapper yet, with actual canbus connection.
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- Yet another of these universal OBD (On Board Diagnostic) port engine remappers that claim to analyse your driving and then rewrite key parameters in your ECU (Engine/Electronic Control Unit) to offer greater power with less fuel.
I bought this one because it showed a picture of the PCB in the listing, showing that it uses an eight pin microcontroller and appears to have actual connections to the canbus network on the OBD port.
The power pin placement on the microcontroller is odd. I don't immediately recall a similar pin layout. It would be interesting to know if it's a standard device. It's not a Padauk chip as far as I can see.
In standby the module enters a passive mode at 9mA where it pulses the communication LED. When activity is detected on the canbus network it directly affects the green LED and after a short time triggers the power LED to come on and the communication LED to start flickering. If the canbus becomes inactive the unit goes into standby mode after about a minute.
Because the chip has a direct connection to the canbus network it is possible for a malfunction to take out the network in your vehicle and cause lots of random problems when the other devices on that network are unable to respond to the ECU.
The unit is fake. It's a placebo. To store suitable details for every single car since 1996 it would need to be able to identify models if it could read the VIN (Vehicle Identification Number) code and then have a database of parameters that could be adjusted with a suitable tuning algorithm for every model. That's not viable for a little 8 pin chip and most cars don't have the facility to make significant changes to the ECU tuning settings via the OBD port.
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I‘ve actually once DoS‘ed my own car while working on the OBD port. I‘ve tried creating my own fuel economy gauge and because I sent the commands too fast my car freaked out. The running engine just simply turned off and it gave me a few warning lights to enjoy.
Stopped the script, unplugged the cable, turned off the car and restarted it and everything was back to normal. But that was certainly a shock moment.
lmao, thats actually kinds unusual and funny
that's pretty cool
too many interrupts lol
'30 to 54 seconds' - nice - that's both strangely vague and weirdly specific.
those were translated from metric seconds...
Yeah, imperial seconds are a bit strange compared to actual seconds
Easy - somebody tried for 30 to 45, but spelled 45 backwards.
what is the length this video should have been for 500.
probably the cheapest source of a canbus connector with case for your own projects ;)
can high , can low, can not XD
Not wrong... I might have to grab a couple of them, as I have been wanting to design some sorta HUD projector.
While the gullible exist, you can make money.
The problem is that you did not buy the electric turbine they also sell on ebay. It needs more TURBO!!!
Whats scary is Audi is using a electric turbo on one of the twin turbo TDI's now lol
@@southjerseysound7340 There's technically nothing wrong with an electric turbo, the ones on ebay are basically computer fans and their airflow is not even on the same planet
@@southjerseysound7340 There is a big difference between an actual genuine electric turbo and a glorified PC fan sold as electric turbo. While a PC fan just needs to move a lot of air around, a turbo needs to compress the air, which a PC fan by design just can't do.
@Spiritpoweredinternet then somebody sold you only a broken (half) unit. every child knows a real turbo needs TWO "propellers" :-)
@Spiritpoweredinternet They do as much helping with boost/airflow as "alot" is a word!! 😋
Hi Clive, all the way through the 1960s '70s and into the 80s, there was a much cheaper way to make your car go faster.... You bought a roll of "Pinstripe" tape and stuck along both sides of your car - guaranteed to increase your top speed by up to ten miles per hour. Of course, if you only put it on one side of the car, it would go faster on the outbound leg of your journey, or on the other side, it would go faster on the inbound leg.
If you wanted rally performance, you bought a much wider tape and stuck it all along the top of the bonnet, roof and boot lid. better still, stick some vinyl numbers on your front doors!
These all worked equally well. All you had to do was to believe in unicorns and pixie dust.
The instructions were missing the key steps of rubbing your belly & tapping your head once its been plugged in.
Don't forget about tapping your heels together and saying "There's no place like blind consumerism" 3 times.
????
but if do that then it work?
Should get one of those dubious snooping OBD devices that are given to the customers of an Insurance company and see what those actually do.
I don’t know for certain, but I strongly suspect they measure throttle response (possibly) and use an accelerometer (almost certainly) and possibly mileage driven to determine how aggressively one accelerates, brakes, and corners over a period of time as well as how much driving you do over a month - essentially testing for aggressive driving. These days they may as well use a smartphone app to record the same.
I hate those things,
Especially when they beep,
Especially from jerks pulling out in front of you,
In a large city…
@Dave Micolichek, Yes it is GPS & not actual accelerator.
@@ethanpoole3443state farm does use an app, with a bluetooth beacon to stick in your car so it knows when to actually track. (not riding in another vehicle)
Some have a slow mobile connection to upload data...
So, if you use all of those fuel-saving devices, do you have to stop every few miles to empty your tank?
In Austin, Texas in 1953 a man sold "gasoline pills". He appeared to pour water into his gasoline (petrol) tank, add a pill and start the motor. An old old hoax.
I have also noticed that Clive keeps saying "Ah, let's a" in his videos and it sets my Amazon Alexa off. I had to change the name to Echo....Bloody interesting videos though....One of my fave youtubers..
Wait til Clive says something about ordering a pallet of dog food...
@@mikecowen6507 I can imagine that turning up at my door...That's why I changed the name to echo...Strange how only Clive sets it off. It must be an electrical affinity.
I don't understand why people don't mind everything they say in their home being recorded. I couldn't handle the feeling of privacy invasion.
@@dickJohnsonpeter 🎶Big Brother, like it's 1984 🎶
@@dickJohnsonpeter It's not...
9mA is actually quite a lot in quiescent terms within an automotive context. Most regular cars are
Only turbo boost I get in my car is if I drive down a really steep hill, with a strong following wind while I drink a large espresso!
That would be a Rolls Royce.
Rolls down one hill and up the other.
@@daler.newbury9967 That's a Rolls canhardly. Rolls down the hill can hardly get up.
Have you tried painting it red?
Don't forget to paint speed stripes. Gain another 10hp easily.
The only turbo my Ford truck gets is when the number four cylinder accidentally fires.
Must be a Fiat 500 then - I take it you cannot go up hills!!
Must be a real bummer having to get out to push it up hills!
>;o)
This is one of those things that if you're a kind of shady mechanic and you see one of these on someone's car you immediately think "I can get away with charging this person for anything" and you end up getting a bill for rotating your spark plugs or changing your driveshaft fluid.
When I worked on Cars. We did sell Power Programmers for Trucks and SUV's. But they actually did something. They were in the $300-$500 range. It was a much larger Box. It would actually save a copy of your program in the Programmer so that you could restore it back to factory default. Then you can go through the settings to change the things you want to do. But generally, to get the best performance, you would have to set it to Premium Fuel. At that point, you would have to fill up using Premium Fuel ONLY. No more Regular or Mid-range. They actually did do what they were supposed to do.
Nothing like this little toy thing that is shown here. It does a whole lot of nothing.
It's homeopathic.
maybe it's based on Aromatherapy too☺
No it's not that good. ;-)
I think you misspelled homeopathetic.
So Many Fn Bananas can you misspell something that is not real?
@@Mrcaffinebean - "Homeopathetic"
Clive, rather than Patreon, have you ever thought about selling personally signed ‘Spudgers’? The Universal non-lethal hand tool!
I would buy one.
Sign me up for one
I would be proud to have one in my toolbox! "Take it to bits!"
Gotta' change the name, though. 'Spudger' sounds like some kind of potato dish in the US.
I have the iSesamo, but would certainly prefer a real BigClive-O-Spudger instead. 👍
The MCU could never send data across Canbus with those 10k resistors in series, Canbus network devices are terminated with 120 ohm resistors so there is no way any mcu could pull the lines high or low through 10k resistors 😉
It's a Plug & Pray device :-)
Plug it in, and pray for a miracle.
Pinout matches an STC15F101W, little micros currently retailing around £0.15-0.20 in volume. Can find them on LCSC
I really like this theory. If so, the Can Bus is connected to I/O pins at 5 and 6. LEDs are connected to I/O lines at 3, 7 and 8. This microcontroller has on-board clock, RAM and a big EPROM so it is fully self-contained. This means that it could easily be talking to the CAN Bus and could actually be doing something. The next thing would be to analyze the CAN traffic to see what is happening. Good find.
@@Toobula: No need, no CAN-controller and no CAN-tranciever in that chip. You can find chips with built-in CAN-controllers but all CAN-trancievers are external. Also, crystal oscillator is missing...
@@bigcheese781 Not true. There are some micros with built in CAN transceivers. They are few and far between, yes, but do exist. Crystal oscillator is not an absolute requirement. It can run on the internal RC oscillator. Some have trimming registers for tuning, as well as PLL's for multiplying the clock. However you are correct that this micro is unlikely to have a CAN transceiver. So successfully communicating on the CAN bus would be difficult. I will not say impossible, as there is some trickery that could make it possible.
@@ArionRaine Really, there are? Can you mention one that has the tranceiver built in? (I'm not aware of a single 8 pin chip that even has a controller, no less the tranciever).
@@bigcheese781 I did not specify they were 8 pin, nor did you imply your statement was limited to 8 pin devices. But yes, not likely in an 8pin device unless it is a custom IC, and they def aren't doing that for these. Off the top of my head I think ST has at least one L99xx part with transceiver. I am unsure if the part is available outside of automotive agreement's however. I think maybe the EBV Epona line of automotive regulator IC's may have them, but I am unsure.
I think it is an STC Micro STC15F104W-35I-DIP8 based on the pinout! It bugged me so I went on a treasure hunt!
Given how much data you can fit on a microSD card, I think it's theoretically possible to make a custom "universal" IC that does tune the ECU, but of course it would involve reverse-engineering the ECUs of thousands of models to figure out the undocumented commands or even exploits required to mod them... if only that theoretical world was reality ;-)
Not only you explain why this unit is bullshit, but you also give advice to the bullshitters to make their product cheaper haha
Love it, thanks for these videos!
That's scam economics for you! I've coined a new phrase, Scamonomics!!!
Big card and dummy walk through for a plc controls sparky was perfect. Thank you Clive
The most useful thing about these is the diagram at the back of the manual showing where the OBD port is.
I trust that gadget, I have a Citroen, today I press open trunk door, fuel cap opens. I will get one. Chinese + France, what can go wrong or get worse?
Steve Henriksson you won’t be able to open the filler cap then. Mind you not being able to refuel probably won’t make a difference in performance. 😂
Steve, there is a difference between Chinese fake and French „laisser faire“. While the Chinese try to make you believe that something is right, the French declare their fail as an expression of „savoir vivre“, and I think this is much more clever.
Actually, there's chinese made citroen, named Citroen fukang
You have a Citroen there’s no accounting for taste.
This thing is literally a pacifier for a car owner. It keeps people from shoving their fingers or bugs into the port while it's there.
Most modern cars have diagnostic CAN behind a gateway, so if your diagnostic tool (or any other crap plugged into an OBD socket) crashes, nothing happens.
Or the odb port cant Diagnose Abs Airbag or any safety related item because there is another diagnosis port in the engine bay. Still statisfies the odb2 norm to the fullest for road worthy tests
@@kitecattestecke2303 Haven't seen a port in the engine bay in ages, there's a few manufacturer-specified pins on the ODB2 port, so the main bus is usually accessed over that after doing a quick handshake.
I do a lot of walking, are these available for shoes?
Just tie your shoelaces around these. They'll give you a noticeable performance boost after having learnt your walking characteristics across 200 kilometres!
Sorry, they got the boot. (Not a shoe-in.)
Only available for diesel shoes at present.
I was hoping there would be a nifty diagram showing where my CAN bus connector was
Did you just ask where your (CAN bus connector) was????@@Deipnosophist_the_Gastronomer funny funny
Most modern cars have a dedicated diagnostic CAN-bus connected via a gateway, so a broken or sketchy device on the OBD2 port will not cause a warning light (unless you are deliberately sending packets to certain ECUs)
I bought one of these as a generic elm327 unit, for something like $13 US...I was testing some software and wanted a poorly rated dongle to see if I could make it work and at the same time, make my software more robust.
But, in fact, the thing failed electrically. It went bad and did cause issues in my car that required more than one cycle of the key. You are 100% correct - as usual.
There's a poster spamming on Facebook who keeps popping up claiming one of these units gives 30% improvement in fuel economy and that they were tested on TV (in the UK) and that the petrol companies want these banned. I added a link to your channel for those who want to find out how genuine these things are!
Don't. I am developing an OBD2 multiplexer, so you can have FOUR ports in your car. With four of these fuel-saver units plugged in, you can save 120% fuel!!!11!!""""""!!!!!
who els falls asleep to big clive taking things apart and reverse engineering random shit after a long day? guess you can say i find his voice frequency soothing lol (resonating @
HisVoiceDon'tHertz) lol your the man clive, cheers from Phoenix Arizona in the US!!!!
Everytime I hear OBD my mind immediately changes that to ODB and I get the urge to listen to some Wu-Tang.
RIP ODB
About as useless as that water quality tester that you plugged into the mains, just a lot safer. I love these teardowns of bogus electronics.
The Russian version swaps LEDs for buzzers. The resulting EDM has cut my commute by 5 minutes.
*_Déjà vu--_*
Oooh the sarcastic comments about that little chip knowing about every car! lol That was a belter!
I'm amazed you had that OBD breakout box.
It may be negligible to a car battery but 9mA quiescent current? That's pretty awful considering most somewhat current micros have idle currents around the micro- to nanoamps. Even blinking the LED it should be way less than 9mA. I expect the micro just always runs full speed.
It does sound like it's running full tilt.
@@bigclivedotcom considering they weren't even smart enough to make it a one-sided board I'm not too surprised they didn't bother to make the micro sleep. And it's not like the quiescent current is the biggest fault with that piece of junk
Most of it will probably be the quiescent current of the voltage regulator. The older LM7805s were in the miliamps, unlike the modern 78L05 low dropout models.
I've used these devices for years even in non ECU vehicles very impressive mpg and severe power and bottom end torque. But now I run my car on hho only using jam jar with some 316l stainless springs inside it connected to the battery through a special on off switch it all cost a lot of money made by experts. I did want to make my own but I'm only a mechanical and electrical engineer.
@Edward Elizabeth Hitler Hi Edward I don't know where this post came from but it wasn't me can you send me a link to the original video
Many thanks Stuart
Nice overview 👍. Wish I had 10% the electronic knowledge you have. Well done.
you are not alone :D love when he Make the Schematics. so many Years Ago i worked with that and undetstood it, so now it just looks weeird but still cool to see
I remember, back in the early days of Ebay, people were selling "performance chips" with ludicrous claims like +20BHP and the like, and it was just a 1w resistor that you connected in series with the intake air temp sensor, to fool the ECU into thinking its breathing colder, denser air and adding more fuel. Lots of people on the car forums back then swore they worked!
They still sell them. They do work to generate easy income for the seller. LOL
You can gain 150 hp by adding a 4" exhaust and chipping a 7.3L Ford super duty. Fact. You also need to add gauges to monitor your engine. The motors are extremely tuned down for long term reliability.
@@driftingabstract4076 HOW DARE YOU INSULT THE QUEEN WITH YOUR KNOWLEDGE OF AIRFLOW!! What's next , MAGICAL GEARS THAT ALLOW YOU TO GO FASTER THAN THE OUTPUT SHAFT??? you'd probably call that a transmission you WIZARD!!
push that tow/haul button immediately and return to street legal mode.
@@ATF2099 Wizard you say? Oh you just wait until we hit 88! I put these on all my vehicles, they actually turn your car into a time machine! It's AMAZING what is packed into these little boards.
You wanted to probe the printout for voltage? Well, at least it's not just me that gets fooled when I suddenly wonder how it is so easy for you to write onto a solder joint!
Hey, everyone knows LEDs add 10hp! 12 if they blink! :D
I didn't but do know...thx for the education...I fuckin love utube
Not as effective as stickers though. They add at least 100hp. Fake AMG, M sport etc. Badges double the power.
Turbo lag is when I start rolling backwards when going uphill.
Kind of reminds me of an LED-blinky equipped lighter I once dismantled many moons ago, press the button to light the flame and the LEDs went into flickery blinky mode, and after a short while, they switched off, the chip was a blob-on-board though so no idea what it was, but that could be where they're getting the functions from... :P
Great-a machine that goes ping but in a tiny package.Amazing what modern technology brings to enrichen our lives. Cheers Clive
be nice if look at the real eml327 and the clones. what the differences are and what is good.
7:50 ... You say "It can" have a negative effect on your car... I say "it will definitly" stop your car from working if the 2 can bus lines are shorted together. It depends on your car... On VW (Skoda Seat Audi Porsche etc.) there is a gateway between the OBD port and the car that will save you... But on my Dacia / Renault etc. there is no protection. You short out the can bus and everything stops working. Cluster , engine ... even the radio will not work properly...
If you ever have questions about car diagnostics and/or Testers... feel free to ask... since 2005 im specialised on repairing cars/ trucks/engines... Can bus (communication) problems are nearly 40% of all failures today.. Exept when your engine is actually blown ^^
Do you think someone could send this kind of device, but with malicious intent, as in, for example, at least unlock car doors when specific radio signal is received?
@@MichaOstrowski its even more simple... plug in a normal obd bluetooth dongel and let it plugged in all the time... now i can access the bluetooth from outside and send my own messages into the can bus over bluetooth... with the right messages you can wake a car and program it remotely... if you embed for example "abs delete" into a plug you can disable or destroy controllers... its super simple. when you have access to the can wires ... the car is yours. basically it works for all cars, just slightly different messages are needed to change / activate things. Its like a open front door to a unsecured jewelery.
@@BaumInventions oh hell... I understand. Bluetooth is not the most secure technology ever. I've been tempted to buy such a dongle, but in my car the socket is right underneath the fuse cover inside the passenger cabin on to the lower left of the steering column, so I could not close the cover if I had anything plugged in there...
@@MichaOstrowski just make pin16 of the obd (+12v supply) switched by ignition instead of a permanent supply... you could use a on-on switch to choose ignition or permanent supply. a permanent supply is needed for diagnostics(you have to turn the ignition on and off during diagnostics)
@@BaumInventions thank you for your knowledge, this sounds very reasonable
And this boys and girls is why you should never ever buy anything made out of Chinesium.
Clive, I have an OBD black box from an old insurance policy, can I send it over?
Send him a message directly in case he doesnt see this message.
BigClive giving a lecture on how to cut even more costs on your scams :-D
It is technically possibly of creating an OBD gizmo that could actually interact with the operation of a vehicle.
The problem is the CANBUS is onl'y a rough guideline and each car-maker has their own proprietary implementation of the messaging through different channels, which itself can vary year for year and sometimes even by model...
So it'd be very difficult or impossible to make one of the devices universally compatible with all vehicles. They would have to create a device for a specific set of vehicles per manufacturer and by CANBUS protocol/implementation standard to just not be reading-in/sending-out glitched-out gibberish.
ed: Not to mention getting access to the companies specific implementation of CANBUS being a trade secret is not a viable method.. such that everything would have to be reversed engineered per vehicle.
Standard GIZMO for OBD exist like Autel where u have real communication on OBD2
the solder job is dreadful on that board.
@Mai Mariarti Now you mention it your right I couldn't have managed better as a child. I Struggle now as an adult 😂😂👍
Chinese assemble these PCBs by hand. Their labor is cheaper than that of a machine!
According to the schematic, the chip might be a STC15W104E which is a enhanced 8051 microcontroller made by Chinese company STCMCU.
┏━━━━━━┓
P34 RST--┃● ┃-- P33
VCC --┃ ┃-- P32
P35 --┃ ┃-- P31
GND --┃ ┃-- P30
┗━━━━━━┛
Like those magnet type units. Its a rip off. I dont care what they monitor. There was an insurance company that advertized you could save money if you can one of their devices on your car. Every time you hit your brakes it would count against you. The thing kept a record of your driving supposedly. Most people complained their rates went up after using it.
I used to have Progressive and they tried to get me into that program, until I looked into it further and realized that my rates would a) rise because I drive in the wee hours (newspaper delivery) and b) my rates would rise again because I often have to brake hard to avoid crossing deer, and c) my rates would be raised based on the towns I drove through.
@@dashcamandy2242 Pretty much EVERYONE that used that sevice reported an increase in their rates. Funny how that happened.
OBD2 started in 1995 for some Ford vehicles in the colonies. My 1995 Ford Ranger is full on OBD2, been told it's not but scanners read it fine and I've changed to a later EEC from 2001 for higher resolution timing control with no problems.
I've never seen a spudger used to open a cardboard box before!
If you use them a lot the edge sharpens up, I have used mine to slice parcel tape and open cellophane before now
No expense spared on that voltage regulator though!
I'm guessing the 78M05 is the SMD version of the older, through hole L7805, they seem quite good at what they do yah.. I have lots.. No idea what for, but I appear to be collecting parts for a reason yet to become clear. I did fix a blown crapacitor in my brother's solar charge controller though.
@@ollieb9875 crapacitor xD
I’m surprised they used anything larger than a 78L05 as well, I guess they must have gotten a very good deal on the higher power regulator! Though with a continuous draw of about 9mA, they could likely have saved further money just using a 5.1V Zener and resistor as a shunt regulator. The efficiency would be about the same and ~70mW is well within the dissipation envelope of most Zener packages.
@@ethanpoole3443 car power is very dirty so a 7805 is not a Bad idear atleast the Placebo shouldn't go bang first crank
I'm so happy you are pulling this garbage apart and testing. Keep up the good work! People need to be warned! It's the same as nitro obd 2. Just revamped! I gotta buy one lol. Nothing compares to the placebo effect after 200 miles of driving. Amazing!😂👍👍👍👍
have you torn down an ELM327 clone? i use em quite a bit but they flake out every once in a while (Occasionally they refuse to connect to my phone after being plugged in to OBD for a while) useful for car guys like me, despite being flaky. when they work, they work awesomely.
I've got a few here to check out. I don't actually recommend leaving them in continuously.
I've had to deal with a few people that had bought those and tried to tell them it all a scam but some people don't believe what you tell them sometimes I'll do a fuel consumption test to prove they don't work love the video thank you
i dont know if you are paid off or whaat but i bought the yellow nitro and it sure as hell works! i watched many videos explaining logically why they wouldn't couldnt shouldnt work but here's the problem, THEY DO! whatever conspiracy ur part of... vast
It's not technically possible to have a unit that can modify the parameters of every single vehicle. Especially when the canbus lines aren't connected. But if you're getting a placebo effect then that's good.
Always a good day when Clive has a new video. Tip to anyone who wants to support TH-camrs but may not have disposable income; let the add play they get more AdSense if ad actually plays :)
Seems risky to have commononed those two ground pins - one could imagine that on some cars there may be a significant difference between them when cranking the engine, especially if the data ground reference is the engine block and the engine earth strap breaks. Also you missed a bit on how to fix your car if the unit screws the CANbus - the correct instructions are "Remove the unit, wind down the window and throw the unit out"
No. You keep the faulty unit and give it to someone you don't like.
@@bigclivedotcom I like your thinking. Even better we should design something like those USB computer killers - it watches the cars speed via the interface, and when it hits 70mph it applies +/-500V across the CAN bus.... An excellent gift for *those* "friends"....
Kevin Baker - Oi! No disposal of useless plastic rubbish in our countryside.
@@Mark1024MAK I was going to chuck it out while driving through Slough......
Most of the time 4/5 are tied together anyways
Oh Clive, Clivey clivey clive. Clivington, Clive-aroony. Cliverydoo. I enjoy your videos mate, keep it up! If you are struggling for content ( not that i think that you are but just in-case ) maybe you can show us how to build something?
"Yes Mrs Miggins, we've tracked down the quiescent drain on your battery to this cheap piece of shit plugged into your OBD port. That'll be £150 please".
Generally, most cars have multiple CANBUS routes, CANBUS on the OBDII connector is connected only to car ECU via separate wires. In most cases, you can't interfere with communication between ECU and other systems (ABS, AIRBAG....). Another snake oil device.
"I was going to probe the drawing again" Made me laugh
You may be being fooled by one of the oldest methods of obfuscation, folding the chip pins over and mounting up-side down, happy days, I kept many mirrored pictures of 74 series, just for that reason...
Nice trick. But i think then there would be no mark for pin 1 on the "top" side? Also the pin out would be pretty uncommon anyway, wouldn't it?
Very well done video. It's amazing these sellers get away with such a scam.
I could be wrong, but doesn't it look like the "MCU" is mounted upside-down? Which would explain the odd pin-placement.
How even? And no it wouldn't.
found your micro datasheet.lcsc.com/szlcsc/STC-Micro-STC15F104W-35I-SOP_C26928.pdf page 5 is where you want to look
seems the 2 pins hooked to the canbus are also the programming pins and the uart a la atmel
also seems that no matter the package the bottom 8 pins are constant but the top ones change
there doesn't seem to be any can capability in the range at all though
I love how the pushbuttons have the four legs like that. My new garage door opener has one of those 'smart' wall control panels so I couldn't just use a doorbell switch inside the house to open the door. Soldered my doorbell switch right to the contacts on that pushbutton and as far as it's concerned, I'm pushing the smart control panel's Open button.
That's pretty neat - I wondered about these push buttons recently, like why 2 poles but it's a nice bonus for sure. Thanks for the insight on this, turning normally two button presses into 1 while keeping circuits independent
I've seen these devices advertised in automotive magazines. Some cost 100's of dollars. Have you taken one of those apart? Would like to know if the whole concept of controlling the car computer fro the OBD port is a real possibility. THX I like the video, keep them coming!
Modern cars have CAN at the OBD port (usually around 2005-2007 onwards, OEM and model specific), older stuff will have a CAN bus in the vehicle, but not exposed to the OBD port.
Could it be that we just don’t understand the way this Chinese technology works?
We should judge this component not only according to its technical but also its psychological effect.
The motorists who use such a device in their car may feel happier and therefore get more relaxed at work.
They may think their car drives faster, consumes less fuel and needs less maintenance.
That's a great achievement that can be caused by such a device!
So instead of saving you fuel its going to waste 37ma of current from the battery. The alternater is going to have to make that back up by taking some power from the engine and waste fuel. Thats one hung lo logic for you!
Isnt that a 555 timer to controĺ the flashy lights. What whoy i what to sell these for one million pounds each lol.😁🇬🇧👌
Also, if you have an accident with one of these left plugged in and have to get towed/mechanic, I'd suspect your insurer might take it as a reason to refuse/restrict cover (even though it's doing zilch).
Most insurers treat remaps/ECUs as mods in the UK iirc, so will bump your premium up a good bit if ones installed (despite them actually being fairly innocuous, and even practical for some models). Not sure if they routinely check for it though on vehicles involved in accidents, but I'm pretty sure a chunk device plugged into the OBD II would be noticed given its ubiquitous use in garages.
Yup, an excuse to wriggle out. I've heard them refuse to pay out for fire claims because the car has waterless coolant in it.
I think I've identified that chip: It's a Myanmar produced micro-controller TR-011-U. It has 4 GPIO pins, ISO 11898-1:2015 bus, 8Mb of RAM and a frequency of 600MHz.
Really cool stuff!
Thanks Mia.
I googled for the MCU, couldn't find it. can you share a link ?
@@7006608 TR-011-U -> TROLLU -> Trolling You :D
@@chemik166 He got me so good that I started researching about Myanmar.
I spent so much time going through findchips and baidu to track it.
"Going to probe the drawing", probably very high resistance. :-)
He actually did it in a previous video :-)
The worst thing about this being a light show is the fact that it's under the dashboard where nobody looks at it ;-)
There's no way this can be doing anything of any worth, you need a CAN transceiver chip, interface chip and a microcontroller, I doubt all that is crammed on that 8 pin chip.
Shango over on his channel tore down one of the OBD II devices that some insurance companies hand out to their subscribers. It's extremely advanced and has ability to read several parameters. (gps, speed, brake habits, etc...) and it gets reported to the insurance company. That looks like a crap ton of electronics shoved into that tiny package.
This one? Placebo effect.....That's it. I see 19 thumbs down at this time of the post. Must be 19 people pi**ed off they got scammed.
@@Tedybear315 Or the scammers
Nice
Next step is to find a very cheap ELM327
That have the proper 1.4 chip.
They only sell clones now
Or they hex edit them to report they are a 1.4 but really a poor quality 2.0/2.1 clone
SuperRandykid
There is a app to check if all the protocols are there.
Thanks for enlightening us about this piece of junk! Great job as usual.
"This reset button is really nice" You said it best! For an item that dosen't do anything they sure care about the user!
Also if they wanted people to forget about it would making it black be better then yellow?
Excellent vid, as usual. One question: Why are you providing advice to the scammers as to how to optimise their designs?!
He knows they don’t watch his channel...
Loading components on both sides is obviously more expensive... You have to stop bits falling off the first side when reflowing the second.
The 7805 regulator should have a small cap on the input for stability. The choice of regulator package may be due to power dissipation to get vehicle "12V" down to 5V. As much as 16V is often seen on vehicle power supply rails.... with automotive rated components rated to deal with 60V load dump transients. Such transients occur when e.g a "mechanic" disconnects the battery while the alternator is trying to charge it.
I think I know what these units do - I too bought one out of curiosity, at a time when I had a recurring ECU error caused by a faulty Crankshaft Sensor. I was keeping an eye on the situation with an iCarSoft OBD Diagnostic Tool until the new sensor arrived, but I noticed that with the eBay unit connected, every couple of days the fault would be cleared briefly, before returning again.
With or without the unit attached, there was a noticeable drop in performance when the fault was logged by the ECU, so is it possible that the eBay Unit just occasionally sends a 'clear all faults' code?
Maybe the 'MCU' is a Pic chip of some kind? Reminds me of the one's they used to use for modding game consoles back in the day :) so just enough guts to send a clear code and the required confirmation code, based on elapsed time.
I don't have the equipment to see exactly what happens, but I agree that there's no way these devices could re-program ECU Fuel Trims.
Great!!. another Gadget with a different color case & a convenient Push RESET button instead of a PIN hole button..
Don't worry about the accessibility of the reset button too much. It's just part of the theatre. These units are fake and just put on a lightshow.
That is actually a 100% real homeopathic ECU enhancer. It doesn't need any built-in logic because the electrons coming in are imprinted with a memory of your driving patterns.
"No way it will increase performance but it might do harm if it shorts the bus" - So... you CAN low but you CAN't high...? ;)
Hey Clive, crazy question, have you ever given any thought to getting a ham radio license? There's a lot of electronics involved in the hobby.
I wonder if the people that buy these even try any of the things that actually help make a car run better. You know like regularly change your oil, run the appropriate grade of gasoline for your vehicle, don't mix coolant/oil types. It is sad that people treat vehicles as badly as they do and expect product like these to make a difference.
Like people who are worried about plane crashes and terrorist attacks ... but refuse to wear a seatbelt.
If several of those were stacked in series would the vehicle use no fuel and have limitless power?
That's very dangerous, fuel will pour out off the filling point !
200 km? I drive that several times a week.
One possibility would be ATiny85. It has RESET on pin 1 and GND on PIN 4. Vcc is pin 8 BUT the LED is always ON - it could be a trace on the bottom side of the PCB - LED shows power is OK and goes to pin 8. All the other pins are I/O...
i found it it's an stc micro stc15, pins match perfectly datasheet.lcsc.com/szlcsc/STC-Micro-STC15F104W-35I-SOP_C26928.pdf
". . . Not that it deserves to be protected". @3:43. Now that's funny stuff! Good one.
Is there really a OBD2 Wireless chip that works good, Maybe a decent one that you can recommend big clive? I know they're going to be limited on what they can do but I would like to have one and I'm not sure which one to buy? I know none of them are going to help your horsepower or gas mileage. Just a diagnostic tool.
I use the elm327 Bluetooth Adapter with Torque or any software I can use with the serial emulation. Don't buy the China crap, most times it won't work. The crap is up to 30 Dollars, the real one is around 50 Dollars up. If it works, the elm is for most people the best option. If you want more than read pids and delete errors, you have to go to special bundels from aeswave, what is up to 1500 Dollars.