Hopefully went to the right section this time. But yeah, turbo GSR, SAFC-tuned, and still leaning out. I'd like a complete diagnosis please. Can someone give me a list of what are the possibilities? No matter how long it is. And again, please keep bad comments to yourself. New at being turbo. Thanks.

 

The problem could be 1 out of over a dozen issues.
You need to list EVERY single detail about the vehicle before we can give you any feedback.

I.E. Injector Size, Injector Impedance, If you are running a resistor box or not, If you are throwing any codes, What ecu you are running, If you have a missing link installed or aftermarket map sensor etc...

The list goes on.

 

Okay, 440cc injectors, running a resistor box, stock ECU, running a missing link, stock map sensor...

 

getting any codes from the extreme MAP signal manipulation of the AFC? how much boost are we talking here? where is it lean and how are you measuring the A/F?

you have to give us more info man! we can't fill in the blanks.

 

Okay, okay! Sorry about that. Here. Uh, boosting at 6psi. It goes lean after a coldstart, then continues to be lean on idle. And no matter how i adjust the AFC, it still slowly goes lean. And i'm using the AEM wideband to measure the A/F.

 

Ohh! And the check light goes on when i let off the throttle on gear. I thought it was just the O2 sensor, but when i jumped it, it was code 13...Atmospheric Pressure Sensor?