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1990 Buick Regal Limited 3.8L MIL Lamp on
Posted to GM Driveability on 9/26/2006 8 Replies

This unit came in with a MIL on and a code 42. Did all the tests and found the ignition module was at fault. Replaced the module with a Wells unit twice and then with a Sorenson unit once. The problem now is that the MIL will light on start up with a code 42, ...

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  Related Documents & Media  1990 Buick Regal Limited

 
Message Closed w/FIX

car Vehicle Data

1990 Buick Regal Limited

VIN 2G4WD14L9L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

42est
Message Closed w/FIX

car Vehicle Data

1990 Buick Regal Limited

VIN 2G4WD14L9L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

42est