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2008 GMC Sierra 2500 HD WT 6.6L Derate
Posted to GM Driveability on 3/25/2016 5 Replies

I am seeing this more and more. Truck with a p0101. Customer states intermittent. Customer replaced own maf with oem par. He does have a K&N filter but new. I monitor grams per sec and they are with in value. I have also put in oem filters and the problem stay...

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  Related Documents & Media  2008 GMC Sierra 2500 HD WT

 
Message Closed w/Summary

car Vehicle Data

2008 GMC Sierra 2500 HD WT

VIN 1GTHK23678
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsDerate
OccursIntermittently
Misc.P0101

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P2563Turbocharger Boost Control Position Sensor Performance
Message Closed w/Summary

car Vehicle Data

2008 GMC Sierra 2500 HD WT

VIN 1GTHK23678
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsDerate
OccursIntermittently
Misc.P0101

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P2563Turbocharger Boost Control Position Sensor Performance