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1998 Pontiac Grand Prix SE 3.1L MIL Lamp on
Posted to GM Driveability on 1/28/2011 16 Replies

Customer replaced EGR before bringing vehicle to [...] trouble code P0405 in memory. Was able to perform EGR testing thru scanner but no engine RPM change. Found the passage from EGR to the intake almost completly plugged off with carbon, cleaned it and retest...

16 Replies Received (View Replies)

  Related Documents & Media  1998 Pontiac Grand Prix SE

 
Message Closed w/FIX

car Vehicle Data

1998 Pontiac Grand Prix SE

VIN 1G2WJ52M4W
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MPFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0405EGR Pintle Position Sensor Circuit Low Voltage
Message Closed w/FIX

car Vehicle Data

1998 Pontiac Grand Prix SE

VIN 1G2WJ52M4W
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MPFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0405EGR Pintle Position Sensor Circuit Low Voltage