I have a 03 cts and getting p2176 i just had a used ecm installed cause the old one had 02 problems now that problem is fixed i have this p2176 ive cleaned the throttle body checked wires cleaned connector tryed idle relearn turned key off for 30 seconds key on engine off for 1 min is there anyway to test the throttle body im out of ideas need to get the car inspected but cant with this problem
Ok i tryed that the light is off but on my scanner shows p2176 pending and if i turn the car off and restart light comes on
08-26-12, 07:17 PM
Hmmm. That seems very odd. Maybe try relearning it and clearing the "pending" code with the scanner. If that doesn't work, try starting it a couple of times as it is possible that the ECM may need to read a couple consecutive positive instances before it will clear itself. I've seen similar situations with other trouble codes.
If that doesn't work, I'm out of ideas man. I guess disconnect the battery for a while and see what happens?
08-26-12, 07:55 PM
Re: 03 cts p2176
ok ill try that just hope its not the ecm just had it replaced with a used one and had a friend at Chevrolet program it