I HAVE A MISFIRE AFTER TUNE UP

  • Tiny
  • adam hartwick
  • 2005 Saturn Relay
  • 6 CYL
  • 2WD
  • automatic

I changed my spark pluges after it was done it was fine. Then I was sitting at a light and my engine light came on. So we had it scaned and found it has a misfire do not know which one is misfiring can you help.

Monday, September 19th, 2011 AT 1:39 AM

8 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

What trouble code was found, P0300 or something other?

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Monday, September 19th, 2011 AT 1:41 AM
  • Tiny
  • adam hartwick
  • Member

Not sure

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Monday, September 19th, 2011 AT 1:42 AM
  • Tiny
  • adam hartwick
  • Member

Only one is misfiring I think

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Monday, September 19th, 2011 AT 1:52 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

PO301, PO302. Indicate what cylinder is missing.

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Monday, September 19th, 2011 AT 2:02 AM
  • Tiny
  • adam hartwick
  • Member

I think p0302

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Monday, September 19th, 2011 AT 2:11 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

That would be cylinder 2. Remove the spark plug and check to see how it is burning (what it looks like) and let me know.

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Monday, September 19th, 2011 AT 3:22 AM
  • Tiny
  • adam hartwick
  • Member

Would using NGK spark plugs cause it to misfire should I use ac delco

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Monday, September 19th, 2011 AT 12:17 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

No, that shouldn't cause the issue. They are good plugs. However, anything is possible.

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Monday, September 19th, 2011 AT 5:13 PM

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