Mechanics

MISFIRE DETECTION

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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Yahya-zoz
May 16, 2012.



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

ASEMaster6371
May 16, 2012.


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