What do these do? Are they related to the "EQ <-> VE" program? Do I need to change them after tuning my VE table with WB?
What do these do? Are they related to the "EQ <-> VE" program? Do I need to change them after tuning my VE table with WB?
E40 pcm's have a VE table, why would you need to use a separate program?
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
There are 10 tables that show up in Engine -> Airflow -> Dynamic Airflow under the heading "Prediction Coefficients", called Corrected, Base, Current, Old, MAP, MAP Old, MAP Old 2, TPS, TPS Old, and TPS Old 2. Each one is 17 columns (I guess one for each zone?) and two row (DOD and non-DOD), and non-zero values are present.
I also have Zone Mapping, RPM/MAP boundary tables, and a "VE Maximum" table, also populated with non-zero values.
Are they present but non-functional?
They're probably perfectly functional, I'm honestly not sure how the pcm uses them in the E40 pcm's though.
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
I zero'd these tables: Corrected, Base, Current, Old, MAP, MAP Old, MAP Old 2, TPS, TPS Old, and TPS Old 2.
No apparent effects when running open loop speed density.
yes they only operate when MAF is used. They are used to predict the future airflow value from past airflow and TPS & MAP inputs.
I count sheep in hex...
So if I plug the MAF back in with these tables set to zero .. chaos will ensue?
Is there a histogram set up anywhere for logging STFT's so I can tune VE's for this PCM (E38/E40)?Originally Posted by Bill@HPTuners
Learning how to create your own histos will exponentially increase your tuning capabilities. Until then here is an E40 STFT VE histo.
Bill Winters
Former owner/builder/tuner of the FarmVette
Out of the LSx tuning game
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