I've been in limp mode ever since I turned 70 but my vehicles run great thanks to you Ivan for everything I learned from you 😁 Ps I did buy a cheap two channel scope last year and solved a few problems since thanks to you I know how to use it. now I have a newfound enjoyable hobby in my retirement Thanks Ivan just about watched every vid you made since you were a kid 😂
Yes sir, watching Ivan work is like going to school. I still have a lot to learn but am haveing a good time doing it. I would like to get a scanner but I only have a, what is it a 5 giga hurts computer. Not sure I might need a faster laptop also, not ready to spend as much as I would need to to get a 2 channel Pico. Anywsy Ivan is the greatest.
@@carbie5614 I bought a hantek two channel for like 70 bucks it works for what I need Did a cam crank retard on my 97 GMC with it turned the distributor until the Waveform lined up the way it's supposed to
Bosch aftermarket stuff is sometimes counterfeit. I bought o2 sensors for my S10 online, correct Bosch part number. Did not work. Went to Oreilly's, bought their Bosch O2 sensor, same part number, twice the price, construction was a little different, and they worked. I did a comparison video of it on my little microscopic YT channel. I always look forward to your videos Ivan.
Let me guest get from Amazon ?, you've been better off getting it from RockAuto however you are correct they seem to be getting counterfeited just like NGK and NTK and other brands to.
Got counterfeit Denso spark plugs for my Highlander from Amazon. They looked amazing. 20k miles, tips eroded, misfire codes. Suspect not actually iridium, you know, the expensive metal! Bought a set from Toyota dealer, twice the price - but they’re gonna go 120k+ miles… counterfeits are difficult to spot nowadays…
This is off topic, but I have to say that the commenters for repair videos done by experts like Ivan and Eric O are so much nicer and civil than commenters for tuner videos. I tend to get PO’d by all of the rude comments for those videos, but here everyone is supportive and nice. Well done, everyone.
Interesting that a Bosch pump doesn't work, as this is probably a Bosch injection system (not 100% sure, though). Maybe it's the wrong one or a counterfeit? If it makes financial sense to fake NGK Sparkplugs, it probably is worth it to counterfeit a expensive di-pump. Good job on tbe diag btw.
I believe after several days of parts swapping one might get lucky enough to actually fix the car without a scope. But proofs in the pudding, if you want facts and quick results a scope is an absolute piece to find these kinds of problems. Nice work Ivan
@@aivarinno9257exactly! I must admit that I wouldn't turn so much attention to that current draw and therefore I wouldn't find that. Everything looked just fine😂
I heard a technician saying a long time ago that vehicle diagnostics can only be done properly using a scope and listening to you Ivan totally reinforces the need. Brilliant diagnostics.
I appreciate how you show that cars aren’t just “black boxes” if you have the right tools. With a scanner I now tackle the simple repairs myself and even if I take it to the dealer - I have a good idea of the problem beforehand.
Trust but verify your test equipment AND your replacement parts. Should have been unnecessary but this is where we are nowadays. Scope and test lights definitely homed in on the issue. Test lights low resistance when cold would have sent someone with less knowledge down a rabbit hole when they tripped a code. Great diag and good explanation.
Admittedly, the scope did prove to be valuable here indeed. But ultimately, it was the varying of the test lights to gain the right amp load for the win. Now you asked, can it be diagnosed without a scope? Obviously, you're shooting in the dark without one. But anything is possible when you put your mind to it. Anyway, very well done Ivan. And that little test light trick is an awesome tip that I picked up from you a while back and I have been using it in a number of my diagnostics ever since. I can't thank you enough for that one.
The PICO Team owes you BIG money for your advertising. Or at least a new current clamp. Not just adding your video to their newsletter... "In this video, the team from Pine Hollow Auto Diagnostics investigate a 2015 Volkswagen Golf TSI that is in limp mode despite already coming back from repairs." What team? Ivan and what army? Anyway, nice catch.
Hopefully they they got rid of those butt connectors and spliced those wires correctly as Audi wires are resistance specific anyway they look horrible, excellent job as always.
8:34 what jumps out at me is that the current is going to zero after the initial peak. The computer is doing PWM, but there's no current. The load is open. You're right. You'd never spot that without a scope.
@@PineHollowAutoDiagnostics I had to download the waveforms to get a good look at them. During the bad pulses, there is current during the initial pulse, but during the follow-up PWM, there's none. However, that seems to be due to the computer deciding not to ground the pump. Interesting that there seems to be some kind of control on both lines and not one side always ground. Two channel isn't enough. Three was needed to see this.
That high pressure fuel pump looked awfully familiar to me-- because it was the site of a $400 blunder on a 2014 VW Passat. While changing the spark plugs, I lightly pulled on the wiring harness and the plastic connector on the pump snapped right off! I did write Bosch to ask why they put such a fragile connector on this- but they never responded- go figure. I am reassured that others have seemed to do this exact same idiotic move! My replacement to the USA original pump was a Chinese made Delphi one and it worked fine. I will add that the pump in your excellent video is the one for the 1.8. If this engine was indeed the 2.0 , there is a different pump used(on Rock Auto)- which may explain what the problem was. Comparing the old and new parts may have been easier to fix!
You are always right without osiloscope nah nobody can find that issue. I don’t have one but I have learned by you and some others how important osiloscope is . Thank you sir
I was living this exact scenario with my VW. While doing another repair the connector to the fuel pump was broken. A bosch fuel pump was installed and the check engine/EPC/limp mode saga started. In the end it was determined that the resistance of the bosch vs the VW pump was slightly different.
Only had that same code about 2 weeks ago in the workshop, once I had monitored at the pcm which was under the screen it confirmed it was the pcm issue, after 2 HP pumps fitted by another workshop. The car was a VW golf btw Now I will continue watching your case study, as I am only 3 minutes in.
Awesome! this morning before work I watched an old scanner danner video of him substituting a engine mount solenoid with test light to diagnose a fuel pressure fault on an audi and tonight after work I watch you diagnose this vw fuel pressure control issue with a test light. Definetely going to be utilising my test lamps as much as I can.
I like the play along picoscope files. It adds a dimension to a video. I'm using the picoscope 6 software in a linux container. The linux kernel won't recognize my Owon 2 channel plugged into USB, so the next option is a new computer.
having test equipment and using it makes working on cars very easy , people over think things and think the worst so they guess , information, common sense and logic goes a long way, its not a race and think things through learn the system and you will get the result you are after , Happy Easter
Hey Ivan, another great case study. I recall Opus hosting a webinar on Volkswagen and Audi. They strongly recommended going to the dealer to pick up a high-pressure pump. Apparently, the aftermarket option isn't quite as reliable as an OE piece. In this case, training would have paid, not cost$.
Great video Ivan. I’ve come to the conclusion over the years that if it has electronics in it, just go OEM. It’s better than the headache of thinking it’s not the new aftermarket part.
Yup. Just finished watching. To be honest i see this a lot. Being that this is what i do for a living. Aftermarket parts these days are really bad. I just had a Land Rocer yesterday that had codes for turbocharger boost control circuit A. Well the first thing i found is that the customer installed a boost control solenoid from Amazon. Installed an OEM solenoid......but still not boosting. Checked wastegate flap = ok. Checked wastegate actuator = ok. Checked solenoid again via bidirectional control = ok. Checked turbocharger spinning freely = ok. Finally started thinking "the customer did replace the solenoid once......maybe he didnt connect the vacuum lines correctly". Sure enough the vacuum reference and the wastegate control were backwards. And not Alldata, Identifix nor ProDemand had a vacuum diagram. So that was fun. The interesting part is that the way this vehicle is engineered it cannot tell the difference, in this case between a mechanical fault and and electrical fault. So because the wastegate actuator is a sinple vacuum diaphragm and has no position sensor the pcm cannot monitor it. And it does not have any sensors on the boost control solenoid itself. So essentially it commands the solenoid. Looks at target boost pressure. Doesnt see that target met. And assumes its because theres a circuit issue with the boost control solenoid. A bit of dumb system for a Land Rover. Although it is obvious once looking at the engine bay that its mostly a Ford Escape. Either way the aftermarket is going down the drain these days. Which is a constant battle for us techs because shops want to keep using them. Its simply more practical. But boy does cause headaches sometimes.
Another test would be to place the test light in series with the pump. This would increase the resistance and lower the amperage but may allow a test of the computer. Or add a 1 or 2 ohm resistor.
Ok I’ve run into this before. Make sure to use the same brand pump that came out. So if it hitachi you can’t use a Bosch and Vica versa. The resistance values will be off and pcm thinks it’s open circuit. I’ve never had to buy one from VW ever. Always use the oem brand and you’ll be fine. Of course it could’ve just been a defect or counterfeit as well 😉
Hey Ivan, great video as always 👍🏻 Does anyone remember the one legged Honda mechanic?His videos have been taken down so I can only assume that he has Unfortunately Passed 😔
Amazing that you caught the current going over the PCM limit!!!! I would expect that the coil ( like the test lamps) would have a higher resistance after warming up. Weird stuff happens, though. Great diagnosis!
VWs are notorious for only wanting their OEM parts I will not work on them as I have been burned by using aftermarket parts (customer supplied ) & they charge a fortune for their parts (weird shaped hose connector had to buy the complete hose assembly $80 aud).Cheers Ivan.
It would be interesting to see if you could insert a ballast resistor in series with one of the control wires to see if that would fix the issue. If I were to go about fixing this without a scope, I could use a test light pretty easily to determine that circuit integrity is good. From there, it has to be the pump or the ECM, and my money would be on the new pump being bad.
Hi Ivan... I haven't seen your videos in a while. Hope you are well. I love to watch your diagnostic videos because I learn a lot about how to troubleshoot my vehicles. Please, keep up the great work! Thank you.
I have had many issues with non OE parts. I even had issues with non Ford thermostats. There should be impedance/resistance values on that pump n service data.
Well, oem only works on certain models. As cats don't like aftermarket stuff lol. Hahaha nice video Ivan. Good study on the pico! I'm sure I'll be dead in the water without them!
Another neat diagnosis!! And still can’t easily let go off the thinktool pros!!😊 Can u pls give us comparison b/n the launch pro 3s+ and the thinktool pros.
Great video Mr Alexander Can you please be more slow of more enfatic how to conect the 5 amp light ? I’m trying to learn you too fast for me though. I appreciate you sir .
Dam good job Ivan that's what happens when you buy 2 bit parts and your right as rain you need a scope and your skills . Sam soup time for sure Ps happy Easter.
about six months ago i got vw with gas paddle code was onscope the paddle its was good no issue then i just scope the throttle body and i was missing the signal one tp2 i believed change the throttle body programed it and fixed it
Good video. Ivan always look forward to your videos. Its like a kid waiting for saturday morning to come around soI can watch comics. I will be calling you for replacement of cam in my VW tdi mk5 5speed with 425k originql miles. Only thing changed is time belt every 100k. ORdered the cam, rocker arms lifters directly from VW, Right now the car runs like a Swiss clock. I am still getting 42mpg city/highway. the parts manager says I amhis best customer. Not sure if that is a compliment? LOL Love your videos. learned so much especially about pico . Got your pressure sensors when they first came out. mark No problem with the car. I want to replace the cam at 500k miles.
I learned years ago just because a part is new doesnt mean its good which is frustrating ! How many DIY mechanics end up firing the parts cannon to find out they just made the problem 10x worse !
Hello Mr Alexander . I watch the video again and it seem like both of the test lights are connected to the hp pum sensor wires? Is that rh? Thank you sir
if I remember rightly I had either 7 or 12 ohms from memory on the HP regulator and it was a genuine VW pump. You said you had 0.6 ohms no wonder it was pulling such high amperage..
I have one of these in my shop now, 2012 2.0 tdi, keeps throwing a p0047 and going into limp mode. Checked boost pressure(act vs des.) with scanner nothing obvious. Hooked up scope to boost control sol. 1 channel power, 2 channel control. 3 channel amps. 4th channel wastegate signal. I am getting inductive spike right before i go into limp mode, i moved my amps channel to the battery post and im getting the same inductive spike there as well. Went to pcm checked powers and ground, checked ac ripple. Everything checks out ok so far. You have to drive it to get it to glitch. I have some more testing to do but im thinking what could spike a power feed and a 5 volt signal at the same time? Did i mention this thing has aftermarket aftermarket hid headlights.... i may be onto somthing.
That was a good find. We've never had any problems with those aftermarket tsi high pressure pumps. So according to ohm's law resistance of a pump solenoid should be actually a little greater for the computer to be happy with it right?
Which version of the PicoScope do you use? The bandwidth and sampling rate seem about right for what you're doing. My old Tektronics analog, non-storage scope is WAY overdue for retirement.
if the car was ok on old pump and it was replaced with none oe . with no scope buying oe pump to try would have fixed car. so a parts cannon with sniper sights. as you always say electrics OE ONLY with these modern cars. good experiment with bulbs kudos to you.
I've been in limp mode ever since I turned 70 but my vehicles run great thanks to you Ivan for everything I learned from you 😁
Ps I did buy a cheap two channel scope last year and solved a few problems since
thanks to you I know how to use it. now I have a newfound enjoyable hobby in my retirement
Thanks Ivan just about watched every vid you made since you were a kid 😂
Having an enjoyable hobby means a lot! 😁👍
ditto (age), ditto (2 channel) if ya really want to have fun, get Ivan’s pressure transducer 😂
Yes sir, watching Ivan work is like going to school. I still have a lot to learn but am haveing a good time doing it. I would like to get a scanner but I only have a, what is it a 5 giga hurts computer. Not sure I might need a faster laptop also, not ready to spend as much as I would need to to get a 2 channel Pico. Anywsy Ivan is the greatest.
@@carbie5614
I bought a hantek two channel for like 70 bucks it works for what I need
Did a cam crank retard on my 97 GMC with it turned the distributor until the Waveform lined up the way it's supposed to
😂
Bosch aftermarket stuff is sometimes counterfeit. I bought o2 sensors for my S10 online, correct Bosch part number. Did not work. Went to Oreilly's, bought their Bosch O2 sensor, same part number, twice the price, construction was a little different, and they worked. I did a comparison video of it on my little microscopic YT channel. I always look forward to your videos Ivan.
Yeah counterfeit parts online is a common thing.
Could have been a factory reject being sold as good.
Let me guest get from Amazon ?, you've been better off getting it from RockAuto however you are correct they seem to be getting counterfeited just like NGK and NTK and other brands to.
Got counterfeit Denso spark plugs for my Highlander from Amazon. They looked amazing. 20k miles, tips eroded, misfire codes. Suspect not actually iridium, you know, the expensive metal! Bought a set from Toyota dealer, twice the price - but they’re gonna go 120k+ miles… counterfeits are difficult to spot nowadays…
Same exact experience with a temp sensor. Cost almost twice as much at oreilys , but it worked perfectly
Thought I'd have a look at your comparison video, Johnnie - but it's impossible to find.
This is off topic, but I have to say that the commenters for repair videos done by experts like Ivan and Eric O are so much nicer and civil than commenters for tuner videos. I tend to get PO’d by all of the rude comments for those videos, but here everyone is supportive and nice. Well done, everyone.
What do we keep on saying? OEM ONLY! OEM parts do the job cause they are designed that way!
Good one Ivan!
Where I live customers are rarely willing to pay for OEM parts😂
Interesting that a Bosch pump doesn't work, as this is probably a Bosch injection system (not 100% sure, though). Maybe it's the wrong one or a counterfeit? If it makes financial sense to fake NGK Sparkplugs, it probably is worth it to counterfeit a expensive di-pump.
Good job on tbe diag btw.
I believe after several days of parts swapping one might get lucky enough to actually fix the car without a scope. But proofs in the pudding, if you want facts and quick results a scope is an absolute piece to find these kinds of problems. Nice work Ivan
Scope without human brain and system analyze and understanding how things work is just a box.
1 one tool is your brain
@@aivarinno9257exactly! I must admit that I wouldn't turn so much attention to that current draw and therefore I wouldn't find that. Everything looked just fine😂
I heard a technician saying a long time ago that vehicle diagnostics can only be done properly using a scope and listening to you Ivan totally reinforces the need. Brilliant diagnostics.
Ivan thank you for providing the Pico waveforms in this video. Great way to do some hands on learning from you. Great stuff!
I appreciate how you show that cars aren’t just “black boxes” if you have the right tools. With a scanner I now tackle the simple repairs myself and even if I take it to the dealer - I have a good idea of the problem beforehand.
Sometimes, I think that Ivan can not be human. I wouldn't be able to do this with twenty years of training. Very excellent work, sir!
Wow, great job! OEM! OEM! OEM! And you barely got your hands dirty.. Thanks Ivan!
Trust but verify your test equipment AND your replacement parts. Should have been unnecessary but this is where we are nowadays. Scope and test lights definitely homed in on the issue. Test lights low resistance when cold would have sent someone with less knowledge down a rabbit hole when they tripped a code. Great diag and good explanation.
Admittedly, the scope did prove to be valuable here indeed. But ultimately, it was the varying of the test lights to gain the right amp load for the win. Now you asked, can it be diagnosed without a scope? Obviously, you're shooting in the dark without one. But anything is possible when you put your mind to it.
Anyway, very well done Ivan. And that little test light trick is an awesome tip that I picked up from you a while back and I have been using it in a number of my diagnostics ever since. I can't thank you enough for that one.
The PICO Team owes you BIG money for your advertising. Or at least a new current clamp. Not just adding your video to their newsletter...
"In this video, the team from Pine Hollow Auto Diagnostics investigate a 2015 Volkswagen Golf TSI that is in limp mode despite already coming back from repairs."
What team? Ivan and what army? Anyway, nice catch.
Oh sweet, a new PHAD video. At least something good came from another sleepless night last night. I'm early for this video.
Man, I am learning so much stuff from your channel, Ivan. Thank you!!
Hopefully they they got rid of those butt connectors and spliced those wires correctly as Audi wires are resistance specific anyway they look horrible, excellent job as always.
Great video Ivan! You can’t beat OEM for these critical parts!
8:34 what jumps out at me is that the current is going to zero after the initial peak. The computer is doing PWM, but there's no current. The load is open. You're right. You'd never spot that without a scope.
Load isn't open. ECM is sensing the initial high current spike and just shuts off the low-side driver so no more current flows :)
@@PineHollowAutoDiagnostics I had to download the waveforms to get a good look at them. During the bad pulses, there is current during the initial pulse, but during the follow-up PWM, there's none. However, that seems to be due to the computer deciding not to ground the pump. Interesting that there seems to be some kind of control on both lines and not one side always ground. Two channel isn't enough. Three was needed to see this.
@@russellhltn1396 exactly right! 🙂
That high pressure fuel pump looked awfully familiar to me-- because it was the site of a $400 blunder on a 2014 VW Passat. While changing the spark plugs, I lightly pulled on the wiring harness and the plastic connector on the pump snapped right off! I did write Bosch to ask why they put such a fragile connector on this- but they never responded- go figure. I am reassured that others have seemed to do this exact same idiotic move! My replacement to the USA original pump was a Chinese made Delphi one and it worked fine. I will add that the pump in your excellent video is the one for the 1.8. If this engine was indeed the 2.0 , there is a different pump used(on Rock Auto)- which may explain what the problem was. Comparing the old and new parts may have been easier to fix!
You are always right without osiloscope nah nobody can find that issue.
I don’t have one but I have learned by you and some others how important osiloscope is .
Thank you sir
Excellent diagnostic, Ivan! Not only the scope was mandatory, but also the amp clamp, as this was a current related problem.
I was living this exact scenario with my VW. While doing another repair the connector to the fuel pump was broken. A bosch fuel pump was installed and the check engine/EPC/limp mode saga started. In the end it was determined that the resistance of the bosch vs the VW pump was slightly different.
Only had that same code about 2 weeks ago in the workshop, once I had monitored at the pcm which was under the screen it confirmed it was the pcm issue, after 2 HP pumps fitted by another workshop. The car was a VW golf btw
Now I will continue watching your case study, as I am only 3 minutes in.
Awesome! this morning before work I watched an old scanner danner video of him substituting a engine mount solenoid with test light to diagnose a fuel pressure fault on an audi and tonight after work I watch you diagnose this vw fuel pressure control issue with a test light. Definetely going to be utilising my test lamps as much as I can.
I like the play along picoscope files. It adds a dimension to a video. I'm using the picoscope 6 software in a linux container. The linux kernel won't recognize my Owon 2 channel plugged into USB, so the next option is a new computer.
having test equipment and using it makes working on cars very easy , people over think things and think the worst so they guess , information, common sense and logic goes a long way, its not a race and think things through learn the system and you will get the result you are after , Happy Easter
That was a good one Ivan, using an equivalent load did the job. A lot of cheap and counterfeit parts on the market.
Dang, my nail is exactly like yours same thumb 😂,good times.
Great video. Going from a circuit code to a low-pressure code is the evidence you needed.
Funny, That Jetta door open alarm sounds like an EKG machine hooked up to a patient. Sort of fitting . :)
Hey Ivan, another great case study. I recall Opus hosting a webinar on Volkswagen and Audi. They strongly recommended going to the dealer to pick up a high-pressure pump. Apparently, the aftermarket option isn't quite as reliable as an OE piece. In this case, training would have paid, not cost$.
Great video Ivan. I’ve come to the conclusion over the years that if it has electronics in it, just go OEM. It’s better than the headache of thinking it’s not the new aftermarket part.
Watch these videos even though might never need these skills as I’m driving a 2011 Isuzu D’Max. It is a pretty solid rig.
Learned along time ago, vw only vw parts❤
Yup. Just finished watching. To be honest i see this a lot. Being that this is what i do for a living. Aftermarket parts these days are really bad. I just had a Land Rocer yesterday that had codes for turbocharger boost control circuit A. Well the first thing i found is that the customer installed a boost control solenoid from Amazon. Installed an OEM solenoid......but still not boosting. Checked wastegate flap = ok. Checked wastegate actuator = ok. Checked solenoid again via bidirectional control = ok. Checked turbocharger spinning freely = ok. Finally started thinking "the customer did replace the solenoid once......maybe he didnt connect the vacuum lines correctly". Sure enough the vacuum reference and the wastegate control were backwards. And not Alldata, Identifix nor ProDemand had a vacuum diagram. So that was fun. The interesting part is that the way this vehicle is engineered it cannot tell the difference, in this case between a mechanical fault and and electrical fault. So because the wastegate actuator is a sinple vacuum diaphragm and has no position sensor the pcm cannot monitor it. And it does not have any sensors on the boost control solenoid itself. So essentially it commands the solenoid. Looks at target boost pressure. Doesnt see that target met. And assumes its because theres a circuit issue with the boost control solenoid. A bit of dumb system for a Land Rover. Although it is obvious once looking at the engine bay that its mostly a Ford Escape. Either way the aftermarket is going down the drain these days. Which is a constant battle for us techs because shops want to keep using them. Its simply more practical. But boy does cause headaches sometimes.
Sometimes it's 10x harder to diagnose the initial problem after someone already messed with it and built in MORE PROBLEMS 😒
@@PineHollowAutoDiagnostics 100% true.
Another test would be to place the test light in series with the pump. This would increase the resistance and lower the amperage but may allow a test of the computer. Or add a 1 or 2 ohm resistor.
Today I got my hands on a 1.8tsi CJSB engine and out of curiosity I measured pump solenoid resistance. It was also 0,5ohm
This shows how you can run better with out high pressure!
Ok I’ve run into this before. Make sure to use the same brand pump that came out. So if it hitachi you can’t use a Bosch and Vica versa. The resistance values will be off and pcm thinks it’s open circuit. I’ve never had to buy one from VW ever. Always use the oem brand and you’ll be fine. Of course it could’ve just been a defect or counterfeit as well 😉
Hey Ivan, great video as always 👍🏻
Does anyone remember the one legged Honda mechanic?His videos have been taken down so I can only assume that he has Unfortunately Passed 😔
Amazing that you caught the current going over the PCM limit!!!! I would expect that the coil ( like the test lamps) would have a higher resistance after warming up. Weird stuff happens, though. Great diagnosis!
Test lights for the win!
You're right, scopes are essential in such cases. And I owe using test lights like that to you Ivan 🙃
VWs are notorious for only wanting their OEM parts I will not work on them as I have been burned by using aftermarket parts (customer supplied ) & they charge a fortune for their parts (weird shaped hose connector had to buy the complete hose assembly $80 aud).Cheers Ivan.
It would be interesting to see if you could insert a ballast resistor in series with one of the control wires to see if that would fix the issue.
If I were to go about fixing this without a scope, I could use a test light pretty easily to determine that circuit integrity is good. From there, it has to be the pump or the ECM, and my money would be on the new pump being bad.
Hi Ivan... I haven't seen your videos in a while. Hope you are well. I love to watch your diagnostic videos because I learn a lot about how to troubleshoot my vehicles. Please, keep up the great work! Thank you.
You're right Ivan That pump is definitely not Bosch
I have had many issues with non OE parts. I even had issues with non Ford thermostats. There should be impedance/resistance values on that pump n service data.
I’ve always said. No scope no hope 👍
I had a Tiguan for a short time and it only liked the OEM stuff I got from the local dealer. Once I learned that I only had to fix a problem once.
Nice and easy. Nice diag, We had a P0092 a couple weeks ago on a Chevy Colorado, ended up being the PCM after similar testing you did.
Super nice diagnostic,very good information and explanation
as always on point
Love the substitution method. Nice diag Ivan!
Thanks!
I wonder if you could have set up your meter to check resistance on that pump as soon as it dropped out.
Well, oem only works on certain models. As cats don't like aftermarket stuff lol. Hahaha nice video Ivan. Good study on the pico! I'm sure I'll be dead in the water without them!
Another neat diagnosis!! And still can’t easily let go off the thinktool pros!!😊 Can u pls give us comparison b/n the launch pro 3s+ and the thinktool pros.
Yet another brilliant diagnostic.
Hi Ivan,EPC STANDS for electronic power control, in others words throttle body is in limp mode
Great video Mr Alexander
Can you please be more slow of more enfatic how to conect the 5 amp light ?
I’m trying to learn you too fast for me though.
I appreciate you sir .
Amazing, Ivan. Simply Amazing! 👏👏👏
You never checked what vw flow chart would have you check. I’m sure they would of gave ohm value for pump and the Bosch one maybe not in spec
Dam good job Ivan that's what happens when you buy 2 bit parts and your right as rain you need a scope and your skills . Sam soup time for sure
Ps happy Easter.
Great diag bro! Broke it down super simple!
This was fantastic.... Wow!
Great case study here.
Nice job Ivan!!!!
Thanks for the video Ivan.
Brilliant !
Ivan you are very clever .
about six months ago i got vw with gas paddle code was onscope the paddle its was good no issue then i just scope the throttle body and i was missing the signal one tp2 i believed change the throttle body programed it and fixed it
Good video. Ivan always look forward to your videos. Its like a kid waiting for saturday morning to come around soI can watch comics. I will be calling you for replacement of cam in my VW tdi mk5 5speed with 425k originql miles. Only thing changed is time belt every 100k. ORdered the cam, rocker arms lifters directly from VW, Right now the car runs like a Swiss clock. I am still getting 42mpg city/highway. the parts manager says I amhis best customer. Not sure if that is a compliment? LOL Love your videos. learned so much especially about pico . Got your pressure sensors when they first came out. mark No problem with the car. I want to replace the cam at 500k miles.
Very good diagnose 💪🏻, thanks Ivan🙏
Great job finding the problem
As usual...great video Ivan!! very good teaching aid. Thank you man!!😊
Fantastic diagnosis!
I learned years ago just because a part is new doesnt mean its good which is frustrating ! How many DIY mechanics end up firing the parts cannon to find out they just made the problem 10x worse !
Hello Mr Alexander .
I watch the video again and it seem like both of the test lights are connected to the hp pum sensor wires?
Is that rh?
Thank you sir
You continue to amaze me. Nice work!
Good diag and fix.
Data is everything, another great video!
if I remember rightly I had either 7 or 12 ohms from memory on the HP regulator and it was a genuine VW pump. You said you had 0.6 ohms no wonder it was pulling such high amperage..
I'd know not to ever disagree with you, even thoe I'm not a mechanic.😁
Great case study! Thank you.
I have one of these in my shop now, 2012 2.0 tdi, keeps throwing a p0047 and going into limp mode. Checked boost pressure(act vs des.) with scanner nothing obvious. Hooked up scope to boost control sol. 1 channel power, 2 channel control. 3 channel amps. 4th channel wastegate signal.
I am getting inductive spike right before i go into limp mode, i moved my amps channel to the battery post and im getting the same inductive spike there as well.
Went to pcm checked powers and ground, checked ac ripple.
Everything checks out ok so far. You have to drive it to get it to glitch. I have some more testing to do but im thinking what could spike a power feed and a 5 volt signal at the same time? Did i mention this thing has aftermarket aftermarket hid headlights.... i may be onto somthing.
Excellent video thanks for sharing Ivan.
That was a good find. We've never had any problems with those aftermarket tsi high pressure pumps. So according to ohm's law resistance of a pump solenoid should be actually a little greater for the computer to be happy with it right?
Simple for you maybe. Great job.
Another win!!
It could also be that the specific Bosch pump was defective that’s why it was over amping and hungry for amps
Great job amigo
No heat shrink on those connectors More trouble down the road
Great video!
Which version of the PicoScope do you use? The bandwidth and sampling rate seem about right for what you're doing. My old Tektronics analog, non-storage scope is WAY overdue for retirement.
the only other tool you could gotten the answer is amp probe which show ed pulling high amps the scope and test light was 100 percent brillant
Nice job.
Chronieizm in the bosch company
🤡💩👹
Great video 👍
Pico rules everytime
if the car was ok on old pump and it was replaced with none oe . with no scope buying oe pump to try would have fixed car. so a parts cannon with sniper sights. as you always say electrics OE ONLY with these modern cars. good experiment with bulbs kudos to you.