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1989 Chevrolet V2500 Suburban Scottsdale 5.7L Excessive Emissions, Poor Idle Quality
Posted to GM Driveability on 7/29/2000

Fuel pressure ok: 11 psi running, 18 psi blocked. Injector balance ok.

Injector waveform erratic: vertical peaks not stable, horizontal line between peaks very narrow and not flat (v-shaped and 'glitchy').

Oxygen Sensor Voltage is 0.395 volts with key on eng...

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car Vehicle Data

1989 Chevrolet V2500 Suburban Scottsdale

VIN 1GNGV26KXK
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Misc.Suburban 4 X 4
Message Closed

car Vehicle Data

1989 Chevrolet V2500 Suburban Scottsdale

VIN 1GNGV26KXK
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Misc.Suburban 4 X 4