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1987 Buick Regal GNX 3.8L MIL Lamp on
Posted to GM Driveability on 9/24/2001 5 Replies

Vehicle had gone through 3 oxygen sensors - they had physically failed (broken porcelin "nipples" inside the "grille" of the sensor) Car runs very well now with a top quality O2 sensor but it still set a code 45 -Rich. Note: the car no longer has a catalytic c...

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  Related Documents & Media  1987 Buick Regal GNX

 
Message Closed w/Summary

car Vehicle Data

1987 Buick Regal GNX

VIN 1G4GJ1176H
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI-Turbo
EmissionsFederal
SymptomsMIL Lamp On
OccursIntermittently
Misc.Grand National

Trouble Codes

45O2 Rich
Message Closed w/Summary

car Vehicle Data

1987 Buick Regal GNX

VIN 1G4GJ1176H
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI-Turbo
EmissionsFederal
SymptomsMIL Lamp On
OccursIntermittently
Misc.Grand National

Trouble Codes

45O2 Rich