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1987 Pontiac 6000 2.8L Excessive Emissions
Posted to GM Driveability on 3/2/1998

This car passes the CO and HC at an idle. Once the car comes off of idle the CO climbs to 2.0+ % and the HC's upto 180 ppm. The O2 sensor switches rapidly at an idle but pegs to 900+ off idle. The TPS is .34

at idle. 'O' scope did not reveal any problems with...

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car Vehicle Data

1987 Pontiac 6000

VIN 2G2AG35X4G
Engine2.8 L / 6 cyl
SymptomsExcessive Emissions
OccursUnder Load, Cruise
Message Closed

car Vehicle Data

1987 Pontiac 6000

VIN 2G2AG35X4G
Engine2.8 L / 6 cyl
SymptomsExcessive Emissions
OccursUnder Load, Cruise