
2003 GMC Envoy SLT 4.2L Reduced Engine Power
The P1271 blues: this vehicle has a history of setting P1271. It’s very intermittent and I have yet to duplicate it. By the time it arrives at the shop the sensors are working normally and the repair is to cycle the ignition key off and back on the get the red...
FIX posted 1/2/2013
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)10 Replies Received(Hide Replies)10 Replies Received
|
Message Closed w/FIX
|
VIN | 1GKDT13S13 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Reduced Engine Power |
Occurs | Cold, Intermittently |
Trouble Codes
P1271 | Accelerator Pedal Position Sensor 1-2 Correlation |
Message Closed w/FIX
Vehicle Data
2003 GMC Envoy SLT
VIN | 1GKDT13S13 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Reduced Engine Power |
Occurs | Cold, Intermittently |
Trouble Codes
P1271 | Accelerator Pedal Position Sensor 1-2 Correlation |