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1987 Buick Grand Nation 3.8L Excessive Emissions, Poor Idle Quality
Posted to GM Driveability on 4/28/2003 14 Replies

The idle on this is pretty rough and the hydrocarbons are around 800 ppm. I'm using every trick that the Vetronix 5100 can do yet no answeres. This car does have the turbo. When I do a power brake there is no detectable miss on the scope nor can I feel it in t...

14 Replies Received (View Replies)

 
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car Vehicle Data

1987 Buick Grand Nation

VIN [No VIN Available]
Engine3.8 L / 6 cyl
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality
OccursIdle
Message Closed

car Vehicle Data

1987 Buick Grand Nation

VIN [No VIN Available]
Engine3.8 L / 6 cyl
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality
OccursIdle