ammuscleftw

I just got my car on the dyno and the a/f was showing 16's!!!! On the high end it would come down to low 13's once it was in the powerband. The guy there tryed to richen it up with my predator and it would not come down ( he set the inj slope and PE to max and it was still showing 16 afr) he recommended changin my fuel filter (original was still on it at 60k) it was kinda bad - i replaced it and it ran a little better i also went back to the stock tune and tuned it so the ltft's and 02 were reading what should be good #'s and i am going back to the shop this week to have the a/f checked again.... does anyone know what else might cause this? any suggestions? BTW the car seems to run fine and I also have a ported and polished TB in addition to sig

foff667

iTrader: (2)

if it was a tailpipe wideband and you were running cats that could be the problem right there...I would try to reverify AFR with a front mounted wideband rather then tailpipe, but thats me.