well I Finally got my wideband installed, AEM UEGO. Ive been getting 14.6-15.4 AFR during cruise (normal?) . I think its f-ing with me because im getting ~12.7's-13.3during WOT. All I did was set PE to 2000RPM. nothing else done with fuel. Injector max duty was logged at 85%. Is this another 02 ecu special thing because others logged 14 at wot and had injector duty at 100+? and had 03+ ecus. My AFR errors are in the single digits +/-. Car pulls awesome and sounds better too. I love it.

Your AF ratios seem fine, it's your buddies that should be worried. Because of the 100% duty cycle, they aren't able to run any richer than that, and their PE enrichment is set to around 6200 stock. You're right were you want to be.


15.3 @ 89.97mph, 14's on the way?

but this is with the 03+ guys changing their PE enable lower than 6200..

the PE enable should be set lower 6200 is something that was changed on the 03s its lower on all other years

YOur AFRs are good however at that duty cycle its time for some new injectors cause your maxed out



1989 Turbo Trans Am #82, 2007 Cobalt SS G85