Formula_LS1

iTrader: (16)

Any idea what it could be? I have to take my car for its inspection soon. Thanks for the help.

2001NBMZ28

See what the code(s) are, that'll help nail it down. Hopefully it won't be a knock sensor.

Formula_LS1

iTrader: (16)

Just scanned it...code P0507..."The PCM has determined that the engine RPM is higher than expected for the current engine operating conditions." I think I know what it is. I'm having my throttle body powdercoated right now. The core that was swapped in was from an 04 GTO. The car had a cam and the hole in throttle body blade is slightly bigger, making the car idle higher. I must have just noticed the SES light after I finished cleaning my engine. So after I put my old throttle body back on, the light should go away, right?