yea, i don't really know. the tuner is good. we tuned at 11.8 a/fs on the dyno and this was due to me still running a cat. the tuner says when you run a cat, you can go a bit leaner cause the cat messes with the reads. .
i'll check for a boost leak, i really don't think i have one, but i'll check.
could a dying AFM cause FC. i'm pretty sure my AFM is on it's last leg.
when i was drag racing last night, the car would die when i hit the brakes after the run and if it rains the car runs liike shit..lately the idle has been getting worse too. my sensor does have 180,000 miles on it