2002 Chevy Silverado ENGINE LIGHT ON

Tiny
KMIG
  • MEMBER
  • 2002 CHEVROLET SILVERADO
Engine Mechanical problem
2002 Chevy Silverado V8 Four Wheel Drive Automatic 54k miles

MY ENGINE LIGHT COMES ON WITH CODES PO101 AND PO300.I HAVE A K-N AIR FITER ALSO IF IT MATTERS?
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Thursday, January 29th, 2009 AT 6:02 PM

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Tiny
BRIAN 1
  • MEMBER
Follow this info, This message applies to all 1999 through 2004 Chevrolet, GMC, Olds, Buick and Cadillac pick-ups and utilities that are equipped with either the 4.8 liter, 5.3 liter or 6.0 liter Gen 3 V-8 engines. Recent warranty analysis indicates that both the MAF, or mass airflow sensor, and the MAP, or manifold absolute pressure sensor, are being replaced for a MAF sensor code P0101. The cause may actually be a MAP sensor failure causing the MAF sensor code. One of the MAP sensor's primary functions is the calculation of the speed density formula, which is compared to the MAF sensor reading. Should the MAP sensor fail, the PCM may interpret this as a MAF sensor concern and set a P0101 code. If diagnostics are followed thoroughly the technician may find a MAP sensor failure causing this condition. In conclusion, when a MAF sensor code of P0101 is found the technician needs to verify the proper operation of the MAP sensor before concluding that the MAF sensor requires replacement. Try this, the k&n will affect mass air sensor. Try to clear the codes and put the stock air filter in and see if it helps. Post back with what you find.
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Thursday, January 29th, 2009 AT 8:11 PM
Tiny
DON OLIVER
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You might also see if you overoiled the filter and it sucked oil into the maf. It'll do the same thing
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Thursday, January 29th, 2009 AT 8:26 PM

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