red fury

iTrader: (1)

Is this a problem? That is at idle and the short terms move about from +4 to -4. Its hard for me to tell if the motor is misfireing since i have a cam in it. TR224/224 112lsa oh mods in sig!

2MuchRiceMakesMeSick

Do you have a wideband...Without one its really a shot in the dark. It could be ok but I doubt it. If you need a wideband there is a dynojet wideband commander gp going on.

Lady Redhawk

iTrader: (6)

That is normal. The stock O2s are accurate at idle. They are just not used during open loop conditions like WOT. Why would you think you had any misfire?

jimmyblue

iTrader: (11)

It's pretty normal to have larger negative trims at
idle, my car did (stock). It doesn't hurt anything, just
a bit rich when uncorrected is all. You could tweak it in
tighter but unless you're fighting some drivability, idle
or starting problem it might not be worth chasing. If
the rest of the trims are pretty well in line and you're
not a pathological tweaker you might just let it be.

red fury

iTrader: (1)

Thanks for the responses. My concern was because before the cam I installed my headers and had a header leak which I didn't know about at the time and the car was misfireing like crazy. But I found my old log book and my Long term fuel trims where not the same and the LTFT that was related to the header leak was +7 to +10.....so the computer thought the car was running lean (header leak) so it was dumping fuel and causing the misfires. I used my scanner on the highway and the the short and long fuel trims mirrored each other respectively.

Thanks again for the "piece of mind"

Brian