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1991 Pontiac Firebird 3.1L Poor Idle Quality, Cuts out, MIL Lamp on
Posted to GM Driveability on 4/27/2000

this car came in 2 days ago the problem is sometimes it will not start and you have to step on throttle slightly and it will start but seems to have no high idle we cleaned the throttle body and replaced the iac motor yesterday and it was ok . But then today i...

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Message Closed w/FIX

car Vehicle Data

1991 Pontiac Firebird

VIN 1G2FS23T9M
Engine3.1 L / 6 cyl
SymptomsPoor Idle Quality, Cuts Out, MIL Lamp On
OccursCold, After a Hot Soak, Intermittently

Trouble Codes

33map sensor to high
34map sensor to low
35iac problem
45rich exaust
Message Closed w/FIX

car Vehicle Data

1991 Pontiac Firebird

VIN 1G2FS23T9M
Engine3.1 L / 6 cyl
SymptomsPoor Idle Quality, Cuts Out, MIL Lamp On
OccursCold, After a Hot Soak, Intermittently

Trouble Codes

33map sensor to high
34map sensor to low
35iac problem
45rich exaust