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2002 Pontiac Grand Prix GTP 3.8L MIL Lamp on
Posted to GM Driveability on 11/18/2019 18 Replies

This supercharged Pontiac has a lean code that we cant trace down. The fuel trim (Long Term) remains around 16% at idle or driving while the Short Trim stays around 0. Smoke-tested the engine with no positive results. Replaced the internal PCV valve and o-...

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  Related Documents & Media  2002 Pontiac Grand Prix GTP

 
Message Closed w/FIX

car Vehicle Data

2002 Pontiac Grand Prix GTP

VIN 1G2WR12102
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/FIX

car Vehicle Data

2002 Pontiac Grand Prix GTP

VIN 1G2WR12102
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)