so ive been attempting to tune and learn the GM system. By far the biggest pain in the arse is the fact that theres limited tables. Im use to Haltech AEM systems along with modified 1st gen DSM SD tuning. Ive attempted to the follow the guides posted here and the ION forums but either there a extremely high level for ppl who have extensive GM PCM tuning or im missing something. Ive been trying to get the MAF tuned well but have been running into issues with commanded AFR and PE. Ill post current tune file and a log. PE i have set to 0.00 accross the board. But now commanded AFR is a steady 14.7. Is commanded AFR based upon Commanded PE? Im use to using a seperate AFR table to target AFR at RPM and MAP
Stoich is always stoich. Pe sets the target afr in enrichment mode. Setting it to zero or 1 disables it and runs stoich value in enrichment mode.
I'm not at a computer right now but disabling pe is a horrible idea. Set the pe values by taking your set stoich and dividing it by your target afr. The result is your pe value. After you set t you don't touch it again. Tune the error in fueling out by adjusting the maf or ve.
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