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Bad misfire

Tiny
NINAGUERRA23
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
Have changed the EGR valve and plugs and wires. Still having the same problem. Codes were read and it came back for a mass air flow sensor? Would a bad MAF cause an engine misfire? Please help!
Monday, November 18th, 2019 AT 5:06 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Yes. The MAF can cause issues with misfires because this is what the PCM uses to determine how much air is entering the engine in order to match the proper amount of fuel to achieve proper air/fuel mixture.

If you provide me the actual code, I can give you the testing for the code. Thanks
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Tuesday, November 19th, 2019 AT 4:30 PM

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