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1999 Chevrolet Astro 4.3L Misfire
Posted to GM Driveability on 12/4/2004 22 Replies

hi guys i got problems with this van si missing at idle or on decel my scanne tool show missfire at #1 3 5 cylinder . i tes t fuel press is not droping , please i need help . thanks

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  Related Documents & Media  1999 Chevrolet Astro

 
Message Closed

car Vehicle Data

1999 Chevrolet Astro

VIN IGBDM19W9X
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursOn Decel, Idle
Misc.Missfire

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

1999 Chevrolet Astro

VIN IGBDM19W9X
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursOn Decel, Idle
Misc.Missfire

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0300Multiple Misfire Detected