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2008 GMC Sierra 2500 HD WT 6.6L Poor Fuel Economy, p0101
Posted to GM Driveability on 2/15/2024 9 Replies

P0101 sets continuously. All stock equipment. Maf reading 14-19 @ idle with egr commanded on and 35 with egr off.

9 Replies Received (View Replies)

  Related Documents & Media  2008 GMC Sierra 2500 HD WT

 
Message Closed

car Vehicle Data

2008 GMC Sierra 2500 HD WT

VIN 1GTHK23678
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / common rail
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, P0101
OccursAlways

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
Message Closed

car Vehicle Data

2008 GMC Sierra 2500 HD WT

VIN 1GTHK23678
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / common rail
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, P0101
OccursAlways

Trouble Codes

P0101Mass Airflow Sensor Range/Performance