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Old Mar 19, 2003 | 12:21 AM
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99BackNBlackZ28's Avatar
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Default Misfires

I keep registering misfires in cylinders 1 & 7, no others. I have no clue why this is happening. I don't feel the car miss too much. Maybe once in a blue moon. I have no clue where to start. I replaced plug wires about 2 months ago, and I replaced plugs in both cylinders about a week ago, and I still have the same problem.

WTF could it be? Bad coil pack? <img border="0" title="" alt="[Frown]" src="gr_sad.gif" />
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Old Mar 19, 2003 | 09:44 AM
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Default Re: Misfires

ttt
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Old Mar 19, 2003 | 10:00 AM
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Default Re: Misfires

Good way to test coil packs is to move them. Try swapping coil packs from 2 and 8 with 1 and 7 or whatever easiest. If your misfires move with the coilpacks, theres your problem. I would be willing to bet its just the plugs are fouled up or the wires/boot connectors are flakey though..
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Old Mar 19, 2003 | 08:23 PM
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Default Re: Misfires

It's definitely not the plugs. As I stated before I just changed them. Checked the old plugs and they looked fine, just for the hell of it I put two NEW plugs in both the misfiring cylinders. Plug wires are also brand new and I have switched the wires between cylinders, so that rules out plug wires.

I'm guessing I can switch coil packs between any cylinder, so I'll probably switch 3&5 with 1&7 and see what type of results I get.

Any other suggestions? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
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Old Mar 20, 2003 | 12:06 AM
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Default Re: Misfires

-Check injector wiring
-Swap injectors
-Compression test
-Leak down test
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