Super AFC 2 Leaned out 50%

[95 gsx racing]

I've posted on here several times, but rarely get any responses. I only have 500 miles on a new engine. I can drive it but it's getting worse. Cold starts I richen the afc from -50 to +22 for around two min. I have it set -50% all the way to 8000rpm. The O2 readings and STFT and LTFT all look good The car hasn't seen over 4000rpm. I'm running the same set up I was before I rebuilt the engine and it ran fine. Other than 1g intake and throttle body. Please help!!!!!

Thanks,

Gregg

 

[RamenPride]

soooo......... are you asking a question (ie. is -50% on the AFC too much)?

would also be helpful if you listed your fuel mods

 

[CanadianTSi]

Don't make changes when the car is cold because things will change when the car warms up.

Only look at things when the car is at full operating temperature and make the needed adjustments.

Also what size injectors are you running to need to be at -50?

 

[Grn95GST]

According to his Mod list:

Garrett V-Trim(46 trim) bullseye housing, internal wastegate, FMIC,Greddy Type S, 1g throttle body and intake manifold, Super AFC 2, pocket logger, Profec B 2, full gauges( boost, EGT,A/F) 3" ATR exhaust, nitrous ( currently not installed ) 3" intake. 3200rpm stall converter, translab shift kit, alto end clutch kit


I am assuming they are stock. I hope he isnt running -50% too long, unless he plans melting a few pistons. I would suggest zero'ing it out and let it run rich and then go from there, its better to be safe than sorry.

 

[hose101772]

Sounds like mine when it gets a major boost leak.