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1995 Chevrolet Astro CL 4.3L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 2/7/2004 36 Replies

The problem is that it runs rich all the time. When I plug off the pcv valve then my o2 starts reading. Until I do this the mv are 850 or higher. I have tied a new pcv valve also and this did not change anything.

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  Related Documents & Media  1995 Chevrolet Astro CL

 
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car Vehicle Data

1995 Chevrolet Astro CL

VIN 1GNDM19W3S
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

45Rich exhaust
Message Closed w/FIX

car Vehicle Data

1995 Chevrolet Astro CL

VIN 1GNDM19W3S
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

45Rich exhaust