i have a stock gsr turbo that is runnine rich and is idlin bad..i took it to work and it worked fine, but when i went back home it feel like ****. alot of miss fire, blog, very low idle, afr showing 10.0 afr, and sometimes it dies....i took off the spark plug and it was black. someone told me it be a bad relay but am not sure. i was thinking if it could be a bad o2 sensor cause when i drove i heard something POP in the exhasut...i think the o2 sensor couldve crack in side but i dunno. let me know if this happen to anyone......i dont know whats wrong..i dide valve adjustment, leak down test, replace new spark plug, and vaccum leak test...so am out of ideas...no check engine light whats so ever ......this is what i have for my set up.

stock gsr turbo running CROME
full race stg 2 turbo kit
3" full back dp and exhasut
rc 750cc pLA hold
victor x manifold
stunk 70mm throttle

thx

 

Was the car properly dyno tuned or are you running some base map you found on the interweb?

 

i had it dyno tune and it ran fine.....i personally think it could be the resistor box...cuz when i pitch the fuel line....it idle alot smooother and the engine sound alot better....what kind of trouble can u encounter with a bad resistor?..my buddy told me if the resistor fails, the injector are set wide open...which cuz it to over rich, idle bad, and foul the plugs...let me know what ya guyz think about my opinion...thx