P0101 CHECK ENGINE

  • Tiny
  • HENRY_15
  • 2004 GMC Sierra
  • V8
  • 4WD
  • automatic
  • 100,000 miles

The check engine light keep reappearing after I erase it sometimes 6 to 8 months after. It is P0101. It runs well and does 'nt take more gaz than before. Is is a k 2500 hd with a 6 liters engine. What could be the problem. Thanks

Thursday, June 21st, 2012 AT 1:06 AM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Erasing a code never fixes anything.

101 is a mass air flow circuit issue. You need to have someone monitor the mass air flow sensor under different condition to determine if it is wiring or the sensor itself.

Roy

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Thursday, June 21st, 2012 AT 1:10 AM

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