Questions & Answers for: Pontiac Firebird bird code

...code? In another post I saw a suggestion to check the idle bypass gauge. What IS that? Does a 91 firebird have one or two (any?) ecm fuses? Does anyone have any ideas of what else to check or ...

...bird not starting My car was parked for years I replaced the fuel and the filter and flushed out the throttle body and it started fine then it sat 2 weeks and the batt was dead so I had it on a ...

...bird replaced the cat converter all three sensors still getting p420 code Are you sure that the rest of the exhaust system is not blocked (muffler) No leaks before converter No engine misfires ...

WHRE IS THE CONNECTOR FOR THE OBD II TO CHECK THE CHECK ENGINE LIGHT CODES IN A 1991 F/BIRD 5.0 TB Hi, I can help. You don't have an OBDII port. You have an On Board Diagnostic set up or just ...