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2002 Pontiac Grand Prix SE 3.1L Hesitation, MIL Lamp on
Posted to GM Driveability on 3/23/2016 25 Replies

Car starts right up, idles fine. However when driven stumbles / hesitates / lack of power under load. Plugs and wires were original. Plugs in bad shape. Replaced spark plugs and wires. Symptoms seemed to improve slightly. Fuel pressure was good and increased a...

25 Replies Received (View Replies)

  Related Documents & Media  2002 Pontiac Grand Prix SE

 
Message Closed w/FIX

car Vehicle Data

2002 Pontiac Grand Prix SE

VIN 1G2WK52J42
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / pfi
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp On
OccursUnder Load

Trouble Codes

P0300Multiple Misfire Detected
P0404EGR Control Circuit Range/Performance
P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

2002 Pontiac Grand Prix SE

VIN 1G2WK52J42
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / pfi
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp On
OccursUnder Load

Trouble Codes

P0300Multiple Misfire Detected
P0404EGR Control Circuit Range/Performance
P0420Catalyst Efficiency Below Threshold (Bank 1)