Hooked4Life

I have an 07 Vette. The tune is pretty much where I want it, but my WOT AF is about 12.0-12.2, I am looking to get to about 12.6 for now. I cant seem to figure out how to just reduce the fuel by about 5% during WOT. My MAF is tuned perfect, giving me 0 trims almost all the time, so I dont want to screw that up. I am just not familiar enough with the tables to know where to tweak the fuel. I am not interested in changing to speed-density tuning. I want to conquor this first.
Thanks

0ZO6PARTS

Power enrichment tabels.

Hooked4Life

That is where I set my AF to 12.6 already. My actual reading from the wideband is about 11.9-12.2, looking for the right table to tweak the actual to match the commanded.

edcmat-l1

Sounds like you have the right approach. Most people skew the PE to get XX A/F ratio. The right way, the way it sounds like you're trying to do it, you set the pe to MATHEMATICALLY be what you want the pe to be, and then scale your MAF. If you need more help, post or pm. You can change the WOT fueling without affecting the part throttle stuff.

Sparkman

Your condition may be result of "cat overtemp" protection. This function adds fuel when the calculated temperature of the catalyst is exceeded.

edcmat-l1

Thats true too, but I've turned a bunch of em off, only to make no dif in the A/F. Some do, some dont. Never seen any kind of rationality behind the differences.

baf2000_1

This sounds like the MAF is reading too high thus adding too much fuel. Looks like VE table may need adjustment.

0foff667

VE coefficient table(s) have little or no say in fueling at wot when the maf is still in use & functioning properly.

0foff667

COT enrichment would show up as a different afr/eq ratio which you should be able to scan, not to mention a status bit so you could always tell when COT is coming into play.

0foff667

Your maf table is your main wot fueling table so unless you want to fudge the pe table you'll need to tune it for your wot fueling so commanded=actual

Hooked4Life

COT is disabled for now, so not an issue.
Thanks for the advice all, these C6 ECU's are pretty daunting at first, but I am getting the hang of it. Taking it one small change at a time, and log, log, log.

I made a few small tweaks to the upper MAF, will post results.

Hooked4Life

Worked great! thanks all.