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1990 Pontiac Firebird 3.1L Excessive Emissions
Posted to GM Driveability on 3/6/2002 7 Replies

This is a wont pass emissions problem with a [...] cruise the O2 sticks at .98V and the fuel trims do nothing to try to get it to lean out. the BLM drops to 118 and the INT stays at 128. Here is were it gets werd, If I unhook the field wire to the alternator t...

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car Vehicle Data

1990 Pontiac Firebird

VIN 1G2FS23T6L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MPFI
EmissionsOBD1
SymptomsExcessive Emissions
OccursHot, Cruise, Idle
Message Closed

car Vehicle Data

1990 Pontiac Firebird

VIN 1G2FS23T6L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MPFI
EmissionsOBD1
SymptomsExcessive Emissions
OccursHot, Cruise, Idle