hptuners wot help
07-01-2004, 05:49 PM
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hptuners wot help I have mutiplied the pe talbe in hp tuners to try and lean out my wot,but it does'nt seem to be helping.I first mutiplied by .93,and then by .95,but the af stayed at 12.2.Any addvice on what to do now?TIA Mark
07-01-2004, 06:13 PM
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No cot is disabled.The 12.2 is a inovate wibeband reading also not some o2 converted reading.This just does'nt make sense to me.The readings at idie and cruise look normal,ltft's are negative and o at wot.
07-01-2004, 06:38 PM
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are your o2 voltages changing at all? Just curious to see if the PE is even doing anything. I noticed my WOT o2 voltages to change when i changed my PE.
dave
dave
07-01-2004, 06:58 PM
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Well not much movement on the o2 readings either, still 960-980 at wot.I'm useing the
v8 rpm pe table I hope thats the right one.Im beginning to miss my carb jets and gas soaked hands.
v8 rpm pe table I hope thats the right one.Im beginning to miss my carb jets and gas soaked hands.
07-01-2004, 10:30 PM
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Look to your open-loop AFR table. As I understand
things, at WOT the PCM will choose between the
richer of PE and the Open Loop commanded AFRs.
So if the Open Loop vs ECT vs MAP table sez 1.13
in a cell (13.0:1 target) and the PE vs RPM sez
1.10 (1.25*0.93*0.95, 13.4:1 target after edit)
the PE table will be ignored because the fattest
one wins.
When you log, next time try and log the Air/Fuel
Multiplier; judge whether it is what you told it
for PE, or something else (and track down what
happens to be pushing that value).
Why you'd be that far off (12.2 vs 13.0) is a
whole 'nother question, but I think if you knock
the Open Loop table, MAP>80, ECT>158F cells
down some, maybe it'll free up the mixture
reduction.
things, at WOT the PCM will choose between the
richer of PE and the Open Loop commanded AFRs.
So if the Open Loop vs ECT vs MAP table sez 1.13
in a cell (13.0:1 target) and the PE vs RPM sez
1.10 (1.25*0.93*0.95, 13.4:1 target after edit)
the PE table will be ignored because the fattest
one wins.
When you log, next time try and log the Air/Fuel
Multiplier; judge whether it is what you told it
for PE, or something else (and track down what
happens to be pushing that value).
Why you'd be that far off (12.2 vs 13.0) is a
whole 'nother question, but I think if you knock
the Open Loop table, MAP>80, ECT>158F cells
down some, maybe it'll free up the mixture
reduction.
Last edited by jimmyblue; 07-01-2004 at 10:37 PM.
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07-02-2004, 04:58 PM
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After several logs the afr finnaly leaned out,didn't seem like it changed immediatly when I changed the pe multiplier.I drove the car twice whlile logging arf on the innovate when I started to see the change.In the end I had to richen back up because it went to 13.3.This was on the same pe multiplier that saw 12.2 early in the afternoon.Does this need to soak in to the tune or is the pe multiplier an immediate and consistant change?Maybe it was just the full moon,or my pcm is possesed.Jimmy blue your explanation my be the answer here also.
