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International Automotive Technicians Network
2002 Nissan Pathfinder SE 3.5L MIL Lamp on
Posted to Asian Driveability on 9/11/2008 4 Replies

Hoping some Nissan techs out there can tell me what is the most common causes of the PO1491. A dealership told this customer that it needed the vac cut bypass valve replaced so being a good pal I believed them and replaced it. Couple days later they called and...

4 Replies Received (View Replies)

  Related Documents & Media  2002 Nissan Pathfinder SE

 
Message Closed w/FIX

car Vehicle Data

2002 Nissan Pathfinder SE

VIN JN8DR09Y12
Engine3.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P1491EGR Valve Lift Sensor Insufficient Flow Detected
Message Closed w/FIX

car Vehicle Data

2002 Nissan Pathfinder SE

VIN JN8DR09Y12
Engine3.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P1491EGR Valve Lift Sensor Insufficient Flow Detected