STFT, LTFT, VE Tuning and logging
#12
TECH Addict
Linda, you can "cheat" and use the STFT's to get pretty close....only use 1/2 the value as they ST's tend to overshoot a little to "make up" for AF error....
I've never tuned an FI vehicle.....it's imagine it's almiost the same but you HAVE to have a 2/3bar MAP sensor and 2/3bar OS or THIS WILL NOT WORK....you WILL break something otherwise because as soon as you run into boost the engine has NO IDEA what is happening....
I've never tuned an FI vehicle.....it's imagine it's almiost the same but you HAVE to have a 2/3bar MAP sensor and 2/3bar OS or THIS WILL NOT WORK....you WILL break something otherwise because as soon as you run into boost the engine has NO IDEA what is happening....
#13
Moderately Differentiated
iTrader: (4)
The catch here for you is, your weight. We all are heavy as it is, but what are you at, 6100lbs? The heavier you are the quicker you are gonna into boost. more load. Just makes for ve tuning in 1bar a little more nerve racking, especially with a blower.
I just want to make sure it is very clear...NO BOOST without a MAF in a 1bar setup. Your pcm doesn't read past 105kpa. Fueling (airflow measurement) is guessing at best and always not enough. (2 really smart guys have already pointed out the obvious)
But if I am reading your threads right you are in the works of 2 bar, so hold off until you get the 2bar install. No reason to learn all over again.
I just want to make sure it is very clear...NO BOOST without a MAF in a 1bar setup. Your pcm doesn't read past 105kpa. Fueling (airflow measurement) is guessing at best and always not enough. (2 really smart guys have already pointed out the obvious)
But if I am reading your threads right you are in the works of 2 bar, so hold off until you get the 2bar install. No reason to learn all over again.
#14
High on diesel fumes
iTrader: (70)
Your best bet would be to get a wideband and a 2-bar MAP sensor. Then you can load an EFILive 2-bar custom o/s and start doing AutoVE tuning. It is very simple, and you don't have to worry about messing with the MAF sensor or LTFT's or STFT's, just a straight comparison between commanded AFR and actual AFR. EFILive has a couple of tutorials that are very good on their site for setting up the 2-bar MAP sensor and loading in the custom o/s. I had no idea what I was doing when I did mine, just followed the directions, and it worked like a charm. Very simple and straightforward.
#17
Originally Posted by thunder550
It sucks to be patient doesn't it! I've been waiting for someone to get me new headers and ORY for about a month so I can finish my tune up and it's driving me nuts!
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