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Misfire detection

Tiny
YAHYA-ZOZ
  • MEMBER
  • 2005 CHEVROLET LUMINA
  • 196,000 MILES
I have lumina 2005 and I have misfire problem. When the car in the idle it likes good then suddenly it hestates then come back to be food and like that.I change the spark plugs but still the same. It is like one of the coils is bad but I don't know how to discover it. I have tech 2 scanner but I don't find misfire graphic pr misfire data so I can discover the misfire
can you help me please with that or guide me if there is a way to discover the misfire with my tech 2.
thank you
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Wednesday, May 16th, 2012 AT 12:50 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You need to read the book for the scanner to see the history missfires. There are many areas that you can go to and get freeze frame data. Look on line for a users manual.

Roy
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Wednesday, May 16th, 2012 AT 1:01 AM

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