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1989 Chevrolet G20 Chevy Van 5.7L Poor Idle Quality, Stall
Posted to GM Driveability on 7/6/2006 13 Replies

This vehicle is running with a poor idle when it idles. It runs a lot better when I remove the vacuum off the MAP sensor. Also I see the fuel streaming not spraying out the injectors. But why would this vehicle idle better with the MAP sensor vacuum unplugged....

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  Related Documents & Media  1989 Chevrolet G20 Chevy Van

 
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet G20 Chevy Van

VIN 1GBEG25K7K
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsUS FED
SymptomsPoor Idle Quality, Stall
OccursCold, Hot, Idle
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet G20 Chevy Van

VIN 1GBEG25K7K
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsUS FED
SymptomsPoor Idle Quality, Stall
OccursCold, Hot, Idle