Mass Airflow Sensors Explained, Tuning Series Vol. 3.1, HP Tuners
ฝัง
- เผยแพร่เมื่อ 11 ก.ย. 2024
- Support Those Who Support The Garage
For more tuning content check out our partner Elite Tuned School:
www.elitetuneds...
Check out the latest tuning courses and classes and don't forget to use code "goatrope" to save 5%
QA1 Motorsports: www.qa1.net/
Nitrous Express and Snow Performance:
www.nitrousexp...
Check out HP Academy: bit.ly/3kobFJZ
Use Code GOAT75 for $75 off!
We use ICT Billet for brackets and more, the best prices for the highest quality parts:
www.ictbillet.com
Links and Merch
Make sure to swing by the Garage's website and pick up your own "Tuned By Me" decal at www.goatropegar...
All Patreon members get early access to videos, special Patreon only videos, giveaways and merchandise. Tuner Tier Patrons gain one on one tuning assistance from the Garage, check it all out below:
/ goatropegarage
Check out our merch store for all your GRG gear!
teespring.com/...
The Garage uses AEM wideband sensors/gauges, grab one below:
amzn.to/33VU1T5
Get your own HP Tuners MPVI3:
amzn.to/3Wmt0pJ
Find the whole Tuning Series Playlist here:
• HP Tuners 101, Tutoria...
Check out the Quick Tuning Tips Playlist here:
• Quick Tuning Tips
Business inquiries can reach us at: info@goatropegarage.com
E-mails requesting tune support will be ignored, please use the Patreon for tune assistance. / goatropegarage
Goat Rope Garage is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com
So much info!!! It’s great. Been going through each video. I’m sure I will be referring back to these later on.
super videos, trying to learn as fast as i can im about 2years behind the game. thanks for the info
damned im 3 years behind
Learning a ton, going to be tuning my Jeep Gladiator. I'm coming from knowing pretty much nothing, so I'm glad you are making these videos.
Subscribed, thanks for all your time and information you have shared with us.
Thanks for the sub, let me know if you have any questions!
Learned a lot in this video. Excellent work man, love the content!
I first want to say that I greatly appreciate you putting all of this great information on tuning! My question is several times in the video you talked about adjusting a perimeter in a calculation to adjust for different size intake tubing. That just so happens to be relevant to me given I recently placed a RotoFab Big Gulp on my ZL1, do you have content on adjusting this parameter or maybe just some good references? Also, going to check the camaro6 forums, but wanted to ask here as well, TIA! Thanks once again for the great content!
I placed my MAF right after the big 'ol AFE air filter in a strait 4" pipe. Air filters work just like air straitener screens.
Wow....no wonder I got a lean code on my VQ35DE engine in my G35 Coupe when I made/installed a custom 3" diameter intake pipe with a welded MAF flange. The diameter of the intake pipe increased thus, actual air entering into the engine was increase but when doing WOTs and in open loop fueling control (narrowband O2 sensor), fueling corrections were not added for the additional airflow. But even AFRs within narrowband sensor range were probably lean causing the ECU to hit a max correction percentage of fueling for "x" amount of time and still not achieve the targeted AFR....as a result, the OBD diagnostic failed this test and set the CEL.
Just some feedback, if you’re going to do this format, I think you should change the order of the videos in the playlist. The information on how and why is very important.
Dude, i just love you!
Looks like I'll have to buy 3 widebands based on your last video 😬 i have 3 LS powered cars so i wont be able to tune the maf on each one until i get a wideband for each one
thanks a lot for these videos. i relay learn a lot, can you please do a video for eco tuning for daily use car
what i mean how we can scale the MAF to be tuned for eco mode and saving some fuel, gm gen v
Good job
Great videos. Super informative. Got a quick question. When increasing the diameter of the intake tube, are there hard coded parameters in HP Tuners that I need to be adjust or will tuning the MAF in the manner you teach automatically compensate for the increase in diameter? Thanks! I can't find the answer anywhere!
The MAF scale is it. If you know how much larger you're going to can ballpark it by increasing your MAF scale by the same percent but it will still need dialed in.
@@GoatRopeGarage Awesome thanks!
Hey man, thanks for the videos! So I just bought HP tuners and I am getting the white band also. I still have to order it. If I can muster up a file, can I send it to you for a tune for a new combination what I did was refresh a 6.0 LS engine, and added a camshaft and intake, manifold and headers, so it will need a base tune what would you charge an old disabled guy like me for a bass tune if I could send you a file or let you do it remote tuning. I purchased credits.
Thanks
@goatropegarage have you shown how to do this set up but using factory o2’s? Some of us are poor folks that can’t afford wideband stuff just yet.
I got a question about the meth injection comment. You stated it is advised to inject between the MAF and the throttle body. Is that applicable for only NA engines and NOT FI? In the BMW N55 community it is the general sentiment that you DO NOT inject in the intake, as some of the mixture will not get sucked in, and trickle back down the intake towards the intercooler, and instead you should inject right into the intake manifold (or if installed, the supplemental fueling port injection kit manifold) to ensure complete consumption of the meth/water mix.
So do you personally relocate the maf from the stock location or is at the filter housing, like all gm platforms run, ok?
live in nederland i have a question i have a chevy avalance 2001 with a stage 2 cam with a turbo with decap injectors but with hp tuners i cant get it to start pls help
I have a question for you i was e-tuned and i have a cobb air intake my a/f ratio is i seen has high has 20.44 and my air fuel correction is everywhere. I have a 2020 sti.. any thought the turner is well known i just want some comfort knowing its ok?
I'm attempting to calibrate jet performance MAF and I'm fairly new to HP tuners would I still tune under normal MAF tuning?
Thoughts on MAF tuning a turbo diesel? is this still recomended to be done the same way?
Hi my friend i have changed my intake filter to sport type large one , the problem is when i hit the accelerator padel the RPM rise normally up to 5000, and it didnt return to idel rpm quickly it take some time to drop.
How can i fix that.
Thank you
Hey bro quick question I’m making a I turn headed back starting over now I’m actually understanding the things your saying hopefully lol anyway I am not at the moment leaning toward a boosted application and saying that should I stick to mass tuning only or can I move into maf tuning ?
I'd run MAF as long as possible.
Thankyou I hope I’m asking the right questions I am truly Grateful I don’t think I would be as far as I am now without you I have a lot of parts sitting on a pallet and I’m itching for them to go in but want to get familiar with turning first Thankyou brother keep it up .
@@thomasjohnson1142 Sure thing! Keep us posted and jump on the live streams Thursday nights if you're around!
Yeah I missed the last one but I’ll catch up with y’all if I’m not on the road later bro!
I an having a problem on my ls1.i have a trx cam 242/248 .595/.610 111 lsa. .243 heads. I can't seem to find the cam specs for it. I bought the car like it is. Any suggestions
My hp tuners looks nothing like urs i have my view on advanced but i cant find anything that ur going clicking on
I've still got a gap in understanding between the frequency at the MAF and how that relates to mass per second. What the ECU wants to do is heat up the little element in the MAF to a hardcoded temperature, right? So it applies electrical pulses to the element in the MAF sensor at a certain rate (which we can measure in Hz), and when a pulse is applied, the element heats up, right? Until it reaches the desired temperature? And THEN, once the ECU knows which pulse rate we're at, it looks up how much fuel to spray and sprays it.
So how does the ECU know when to speed up or slow down these pulses? It to me like the ECU would need to know what to expect the next reading to be, which... if it did, it seems to me like we wouldn't need MAF sensors at all! I think I'm thinking about this backwards somehow...
Has a temp sensor and it's goal is to maintain a set temp, as more air goes across it then the ecu has to apply more Hz to keep the temp stable
I need you to look at my tune. Its way to rich when it gets to operating temp. lol
It's only rich at operating temp?
@@GoatRopeGarage yupp at cold idle its spot on but when it gets to operating temp it loads up real bad rich
Unplug your MAF sensor and see if it does it. About the only other thing I could think of off the top of my head that would make it run ticket at temperature is a bad oxygen sensor, that starts to fail when it gets warmer.
@@GoatRopeGarage i have done that and it runs pretty rough. The o2's seem to be working as should i have the PE set to 1.18 and its running about 13.9 rich at wot
@@GoatRopeGarage im in georgia and i have spent almost 3000.00 on people trying to tune it and i finally bought hp tuners and trying to fix it myself. Learning as i go. All people do is throw a bs tune in it and call it good.
Love the videos. Question, you speak of speed density versus closed loop using MAF and O2. On my subaru, I am running both (tuner set this up for me). It switches depending on some parameter (I will guess load) to speed density as I was maxing out the MAF voltage at high boost levels (above 22psi). Have you done any of this or maybe you could shed more light on this hybrid option? Noticed that this wasn't an option you mentioned, so wanted to bring it up.
Interestingly enough, I am indeed injecting water/methanol between my MAF and the throttle body, but my MAF has the air intake temp sensor built into it. You note that this can cause issues as the cooling from the water/meth won't be taken into account. I have actually had good performance with this system (not having them broke apart), but I am a little concerned after you explained it that there are some big risks associated. Would you be able to elaborate on those?
Spraying across the MAF can cause issues with the heater element, that is why we break it out so we are spraying between the MAF and the IAT. On the GM platform we don't have the ability to really switch between MAF and SD per say, we can go into a mode where MAF is primary control in the higher RPM's as airflow is steady state for the most part up there. But we can't go back into SD after that point, though we can disable the MAF if we exceed it and run off of SD alone if needed.
@@GoatRopeGarage Awesome, thanks for the info. In my setup, I am spraying after the MAF, between the top mount intercooler and the throttle body. The MAF and IAT are built in as one on the make/model/year car I am running, but I am definitely not accounting for the cooling affects the water/meth is doing. Do you feel that it would be all that beneficial to break out the IAT since the water/meth being sprayed in isn't all that consistent (in comparison to injectors by the intake valves)? The other concern I would have is the heat soak from the motor on the intake manifold itself versus on the intake tube where it currently sits. Any advise/thoughts on this?
I also confirmed that the way the hybrid option it setup in my example is based off MAF voltage. Once I get over 4volts on my MAF sensor, it switches to Speed Density which is a neat way of getting the best of both worlds I think!
So if you increase the maf diameter, the airflow at a given frequency will be higher right? So would calculating the area difference be a good starting point for a bigger intake?
Yeah, you can get an idea of the difference that way so if the tube is 30% larger you can start there, it won't be perfect but it will be close enough that it runs so you can dial it in from idle.
Why does my gen 3 not show as many options to change
Make sure you are looking at the advance options, look under the view menu
To increase the intake size. Do you mean just the maf part? Or the entire intake?
Either
Can the mass airflow affect the idle and cause it to misfire?
If it's bad or way off on the tune, certainly
So is it the same concept with a blow thrue maf
Yep
Hi , sorry might be newbie question ,I have cammed my engine 6L l98 valve springs etc what is the limit to the maf would it be acceptable to keep running it it’s going to be a daily driver and at what point would it need to be strictly speed density would the maf max out under WOT pulls, cheers
It shouldn't, MAF can usually handle boost for awhile, the issue you might have is a cam with a narrow LSA can cause the mad sensor to have issues reading down in the lower rpms.
No worries thanks for the reply it’s a n/a setup sorry forgot to mention,
so there shouldn’t be any issues it reading at higher rpms? Is it possible to tune with the stock o2 sensors it’s a r/h drive Holden commodore ss I’m not completely sure if they come out with wideband or not I will have to check or are the oem ones just not accurate enough to get true afr reading ,would I be best to tee in another o2 boss for a wideband solely for tuning, thanks for your reply much appreciated
So, I been fighting with some issues on my truck and 99% sure it's MAP related since running 12psi on 1 bar stock MAP. Can I disable the MAP stuff and just stay 100% MAF for a bit till I get new MAP delivered?
Sure, so long as you're not maxing out your MAF you should be alright
@@GoatRopeGarage thanks man. You're the only person that actually gives answers. Just wanna throw my laptop in the truck and drive down for a personal lesson
@@GoatRopeGarage actually not even getting deep into the throttle. Just cruising daily stuff. Western NY weather. Lol
Need some help with a gen 3 tune. Trying to get a good base tune.. idle fueling is way off super lean won't even pick up on my wide band. Where should I start? Want it safe enough to drive it to get some log time to be able to tune it safely
What are you doing first, MAF or SD?
I'm trying to get it to run off maf it's a p59 ecu. Truck maf. 1 foot piece of pipe before the maf on the intake tube.. I set up the vcm scanner like you did for the maf and stuff just neeed a good starting point. I tried to watch all 3 of your 3rd gen videos and I didnt 100% get what I needed as a good starting point.. much appreciated!!
Do I need to force it into maf only then and try and go from there?
Yeah, and you should be able to adjust it until you get it idling and go from there using data logging
What about mafless tune?
Just do SD and never turn the MAF back on
4:10 "fluid"
ABT lol
For some weird reason this video makes your hands look like a T-Rex or a velociraptor
can I pass readiness test without maf sensor on my 04 silverado with a turbo setup. If I go with a 2 bar SD OS can I still use the MAF sensor.