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P0100 code

Tiny
CABBY022
  • MEMBER
  • 2006 CHEVROLET IMPALA
  • 125,000 MILES
Replaced mass air flow assembly, with new air filter, checked for vacuum leaks, ( none) when I clear code car runs without engine light on, once car is shutt off and restarted engine light appears p0100. Any ideas? Mike
Saturday, April 27th, 2013 AT 9:33 AM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
The reason it acts that way is because it is a 2 trip code. Apparently the sensor itself was not the problem and it needs to be troubleshooted further. Could be wiring, PCM or a mechanical air flow issue in the engine.
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Saturday, April 27th, 2013 AT 9:59 AM
Tiny
CABBY022
  • MEMBER
  • 6 POSTS
Ok thanks I will check the wiring harness
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Saturday, April 27th, 2013 AT 10:50 AM

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