stigmundfreud
July 6th, 2010, 06:30 AM
Whilst waiting for the wideband to turn up my friends tune is dangerously lean. I've increased the main VE table by 20% to get things in general a lot closer (all LTFT and STFT were between 20 to 30% on average so did a broad uplift to get a safer base).
Using LTFTBen I can control conditions outside of PE mode <80 kPa but as the car is FI I am worried about setting PE to EQ1. Currently Openloop VE is set to EQ1 and PE set to 1.13 (with some richer cells but thats average)
Now is it possible to use LTFTBen in these areas to ensure commanded is close to what we aer getting or will they be disabled as STFT's are off in PE mode?
I dont want to run a lean car even leaner in PE mode. The alternative being to increase the PE VE ranges a further 15% then wait for the wideband to turn up and finish off PE with that and on a dyno too.
Is there simply a way to get LTFT to account for commanded AFR to say thats the value it should be trimming to? Ie commanding 14.6 = 0 LTFT when dialed in but in PE range LTFT of 0 = commanded PE figure?
Using LTFTBen I can control conditions outside of PE mode <80 kPa but as the car is FI I am worried about setting PE to EQ1. Currently Openloop VE is set to EQ1 and PE set to 1.13 (with some richer cells but thats average)
Now is it possible to use LTFTBen in these areas to ensure commanded is close to what we aer getting or will they be disabled as STFT's are off in PE mode?
I dont want to run a lean car even leaner in PE mode. The alternative being to increase the PE VE ranges a further 15% then wait for the wideband to turn up and finish off PE with that and on a dyno too.
Is there simply a way to get LTFT to account for commanded AFR to say thats the value it should be trimming to? Ie commanding 14.6 = 0 LTFT when dialed in but in PE range LTFT of 0 = commanded PE figure?