Join Now
International Automotive Technicians Network

P1271 Diagnostic Trouble Code Discussion for July 2009

Air Fuel Sensor (Bank 1 Sensor 1) Circuit No Activity


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1271
Help Request Posted
2003 GMC Envoy SLT 4.2L MIL Lamp on VIN: 1GKDT13S73
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. ... power mode when the mil comes on with codes p1221 p1271 and p1481. the code can be cleared and normal engine operation will resume for up to a couple of days. vehicle will also intermtitently cruise at 40mph. without accelerator being touched. of course th...
July 02, 2009
2003 GMC Envoy SLT 4.2L MIL Lamp on VIN: 1GKDT13S73
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. ... power mode when the mil comes on with codes p1221 p1271 and p1481. the code can be cleared and normal engine operation will resume for up to a couple of days. vehicle will also intermtitently cruise at 40mph. without accelerator being touched. of course th...
July 02, 2009