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Old 08-30-2010, 02:23 PM   #1
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Join Date: Jul 2010
Location: millington,mi
Posts: 5
cant figure out my backfire and misfire on my 97 lt1

i have a 97 camaro lt1 sixspeed. car is misfireing and poping when hard on the accelerator. i put a brand new optispark new wires and new plugs in it and the problem did not get any better. i noticed when i rev the engine in neutral the mph gauge also goes up to 30 when car is not even moving. i checked all my grounds and i am just lost. does anyone have any suggestions at all. any ideas would be really appreciated . thank you in advance
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jmkopac is offline   Reply With Quote
Old 08-31-2010, 10:15 AM   #2
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Join Date: Jul 2003
Location: Upstate New York
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Maybe try leaning it out if you have software.
My car developed a miss from being too rich.
When I leaned it out the miss went away.
97 Z28 383 M6 Vert,SS Hood,Trickflow Heads TPiS Longtubes and 2 Cat Y Pipe, Magnaflow, MSD ignition 3.73,CragarSS Classic, 4.5 psi Powerdyne.
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Old 08-31-2010, 09:47 PM   #3
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Location: jackson, ohio, usa
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On the front of the engine, driver's side on the head, is a finned aluminum mount with the ignition module on it. I'd get it tested first off. Autozone will do it free.
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Old 08-31-2010, 09:47 PM
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