2002 GMC Envoy Check Engine light on

Tiny
AGARDNER1
  • MEMBER
  • 2002 GMC ENVOY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
Hello, there are two codes that were listed from my diagnostic test, (P1482) Manufacturer control Auxiliary emission controls), (P1271) Manufacturer Control Fuel Air Metering.) Please help with any info on what repairs I would need. Thank You!
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Monday, February 8th, 2010 AT 5:34 PM

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Tiny
BLUELIGHTNIN6
  • EXPERT
DTC P1271 : Excessive Difference Between Accelerator Pedal Position Sensors

Check wiring at both APP sensors and test both sensors.

DTC P1482 : Cooling Fan Clutch Control Circuit Improper Voltage

Are your cooling fan(s) operating normally? If not check cooling fan relays
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Monday, February 8th, 2010 AT 5:40 PM
Tiny
AGARDNER1
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Thursday, February 11th, 2010 AT 12:47 PM

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