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1990 Chevrolet Lumina 3.1L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy
Posted to GM Driveability on 6/19/2008 4 Replies

This one came in running rough, dies, bucking, surging, backfiring. Checked for codes and none present. checked data and MAP/Baro at 3". TPS at 0v. Tested 5v ref circuit 0v from ECM. Tested power supply and grounds all good. replaced ECM and same problem occur...

4 Replies Received (View Replies)

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car Vehicle Data

1990 Chevrolet Lumina

VIN 2G1WL54T1L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy
OccursAlways
Message Closed w/FIX

car Vehicle Data

1990 Chevrolet Lumina

VIN 2G1WL54T1L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy
OccursAlways