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1993 Chevrolet S10 4.3L Poor Idle Quality, Hesitation, MIL Lamp on, RUNS A LITTLE ROUGH
Posted to GM Driveability on 7/8/2003 4 Replies

since vehicle has been back in our shop . it had a code 42 in system, at first going thru flow chart said ignition module was bad. we replaced with ac delco module, cked all connections etc. ran a little while and ck engine light came back on with code 42. we ...

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  Related Documents & Media  1993 Chevrolet S10

 
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car Vehicle Data

1993 Chevrolet S10

VIN 1GCCS19Z8P
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsUS FEDERAL EMISSIONS
SymptomsPoor Idle Quality, Hesitation, MIL Lamp on, Runs a Little Rough
OccursCold, Hot, Idle, Intermittently, Tapping Vcm Computor
Misc.Extended Cab

Trouble Codes

42est by pass circuit
Message Closed w/FIX

car Vehicle Data

1993 Chevrolet S10

VIN 1GCCS19Z8P
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsUS FEDERAL EMISSIONS
SymptomsPoor Idle Quality, Hesitation, MIL Lamp on, Runs a Little Rough
OccursCold, Hot, Idle, Intermittently, Tapping Vcm Computor
Misc.Extended Cab

Trouble Codes

42est by pass circuit