I have 3800 Performances DHP NA Tune, a front PEM, and a cone air filter connected to the MAF. I just put some gumout cleaner in my fill up, and I'm going to get some electrical contact cleaner to clean the MAF. Then I'll do a plug chop and pull #5 and see what she looks like. Wouldn't I be getting a SES light if I was super lean or rich?