emretiras

hi everyone

Have a 98 corvette. put brand new transmission oil pump on it. There was no trouble with the engine before i changed it. When I changed and start the engine cold, it idles perfectly for just 1 minute. after one minute, AFR goes 7,62 to 15,70 g/sec when idling. Changed the sparks and plugs, coils. I don't know what to do and I'm so confused. Diagnose device says; Air System Fault (Bank 2). Controlled the air pump, when I cold started the engine, it works properly for just 1 minute. After air pump stops, it idles really bad, raw fuel on the exhausts.

Waiting for your replies. Thanks.

directnosfogger

If you know g/sec, what is your actual AFR? Sounds like you might need to retune the base airflow as the ect's rise.

emretiras

thanks for your reply

But i dont know how to retune my base airflow, can you please tell me how? Retune it with what? snap-on or somethin? Or just mechanically?

emretiras

And i noticed yesterday, when idling goes bad after 1 minute, passenger side injectors just dont work, I'm unplugging them when idling, and it's not going worser. Still same, but when I unplugged the drivers side injectors, it stops. If this information helps...

emretiras

Now i got what was the problem is and i solved, oxygen sensors was cross connected,

NOW I have a really big problem, when i lift the car from the backside it starts and runs great in the air, when i got car on the ground it wont start. Changed the fuel pump. Please someone help me about this

tblu92

OMG Plugs Coils Wires Fuel Pump ?? Just don't randomly change parts without knowing what's wrong--Guessing is expensive--It would have been cheaper get a diagnostic check done at a shop for $100 to pinpoint the exact issues----
As for your new problem I've never heard of such of a thing on ANY car !!
What exactly do you mean by car won't start ?
Won't turn over with the starter ?
Ignition switch doesn't light up the dash?
Engines turns over with starter but won't start ?