Once VE is good adjust base running airflow from STIT.
Once VE is good adjust base running airflow from STIT.
With my fuel injector setup being flat am I supposed to hook the vacuum reference up to the regulator? Or leave it open to atmosphere?Originally Posted by SiriusC1024
Hook it up to vacuum.
So just to double check, after tuning the VE table and all that is done, I?m still keeping the MAF failed out correct? To keep it in speed density all the time?
Yes, keep the MAF failed to stay SD, even with the SD OS.
Don't forget to turn DFCO back on and adjust PE enables when you're done with VE.
One other question, the injector data you entered in for me was deka 80 but what psi should I have my regulator at?
With the vacuum line to the regulator disconnected it should be 58psi. That's how it's set. Then connect the line and it'll vary to maintain consistent pressure differential across the injector.
Okay thanks I have it set to that already just wanted to clarify make sure I had everything correct, appreciate it
My injectors are trash, got a couple that went out on me now, so what is a good brand to get for injectors, wanting to keep the 80 lb/hr
Just for sake of argument let's say your truck makes 400 naturally aspirated rear wheel horsepower,(rwhp) which in this case with the setup you have described so far, GEN3 port injected 5.3 with a camshaft will not but, ~400rwhp should only demand around 32lbs to maintain ~80% injector duty cycle. This is Goldie Locks, not too little, not too big. Yes, you will have to re-do your VE air calibration but, in the long run you and the truck will be so much happier. Stick with name brand, quality injectors with HP Tuners formatted calibration information from a reputable vendor.
So I was able to rma the injectors got them back, same thing I?m like 10% lean on bank 2, I checked for vacuum leaks and found none, and have good fuel pressure 58 psi with vacuum off, I?m unsure what to look for next as I?ve went over virtually everything, I have a log I will post to you later, is it possible the pcm could?ve went bad?
so due to it running lean i went back to that bad tune that guy had where it was running really rich and the data was wrong, but in this you still can see the o2 sensors picking up bank 2 is 10% leaner than 1 log 4.hpl
Bank-bank imbalance isn't something that can be adjusted in the tune. Either you have a bad O2 (replace in pairs) or there is a mechanical problem.
So I?ve replaced o2 sensors, I have checked for vacuum leaks, warrantied my injectors, I?m unsure what else to check for this imbalance on my banks, any advice on this issue please?
Another thing to note is the fuel trim says -11.7% on bank 1 and 0% on bank 2 during the open loop. Not sure what that is about, then they will go -20% on closed bank 1 and -3% bank 2, very imbalanced, but truck does not misfire at all and feels the same as before it did this
After several months, repost a new tune and log.
Why? Nobody else does LOL
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
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Read the log from 4/13 nothing has changed from then to now, labeled log 4.
You're asking for advice and pretty much refusing the post a new, current data log?
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
email=[email protected]
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