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1989 Chevrolet Corvette 5.7L Poor Idle Quality, MIL Lamp on
Posted to GM Driveability on 2/22/2007 7 Replies

89 Corvette Installed new engine. customer returned set code 42 EST. Checked Mitchel On Demand and followed flow chart. Ingition Module was not switching. Replaced Ingition Module - switiching now. Still have code setting. Per flow chart replaced ECM. Not prom...

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  Related Documents & Media  1989 Chevrolet Corvette

 
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet Corvette

VIN 1G1YY2183K
Engine5.7 L / 8 cyl / GAS
Trans6-speed Standard
DeliveryFI / PFI
EmissionsCA
SymptomsPoor Idle Quality, MIL Lamp On
OccursAlways

Trouble Codes

42Electronic spart timing
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet Corvette

VIN 1G1YY2183K
Engine5.7 L / 8 cyl / GAS
Trans6-speed Standard
DeliveryFI / PFI
EmissionsCA
SymptomsPoor Idle Quality, MIL Lamp On
OccursAlways

Trouble Codes

42Electronic spart timing