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1991 Chevrolet Cavalier RS 2.2L Hesitation
Posted to GM Driveability on 10/19/1999

Hesitates and backfires on accel. scan snap shot shows timing retards to 0 when this occurs. module and ECM replaced, pinout voltages and ground voltage drops remain constant when occurs. No other components in this setup.

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Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Cavalier RS

VIN 1G1JC54G5M
Engine2.2 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI
EmissionsOBD I Fed
SymptomsHesitation
OccursOn Accel, Intermittently
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Cavalier RS

VIN 1G1JC54G5M
Engine2.2 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI
EmissionsOBD I Fed
SymptomsHesitation
OccursOn Accel, Intermittently