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Misfiring, HELP!

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Old Dec 5, 2002 | 06:28 PM
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99BackNBlackZ28's Avatar
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Default Misfiring, HELP!

Alright guys...My car has been running like crap lately, so I went to my local AutoZone to have them scan for codes and see what popped up with my car.

Here are the results:

I have 0 o2 sensors showing activity (2 non-existant due to header install, not running Simms)

I also have a misfire in cylinder #7.

My main concern is the misfire, I am going to replace the front o2 sensors this upcoming Saturday. Do you think this will also take care of the misfire issue, or am I looking at a much bigger, worse problem?

Thanks for any advise or opinions.
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Old Dec 5, 2002 | 08:46 PM
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SiLveR2000 Z28's Avatar
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Default Re: Misfiring, HELP!

check out your spark plugs maybe there loose or ssomething, number 7 should be on the right side it goes 1,3,5, and 7 so it should be in the very back if im not mistaken. i had the same problem a week ago and it was due to a loose wire on one of my spark plugs,and a wierd smell would come out of my exhaust which was probably cuz the gas wasnt getting burning and just oging straight through the exhaust.
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Old Dec 5, 2002 | 09:13 PM
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2001WS6Vert's Avatar
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Default Re: Misfiring, HELP!

An o2 won't cause a mis-fire. You don't have forced induction do you? Because #7 is the cylinder all the F.I. guys smoke from running lean with boost.
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Old Dec 6, 2002 | 12:03 AM
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99BackNBlackZ28's Avatar
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Default Re: Misfiring, HELP!

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 2001WS6Vert:
<strong>An o2 won't cause a mis-fire. You don't have forced induction do you? Because #7 is the cylinder all the F.I. guys smoke from running lean with boost.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Nope, not running FI.

My mods are really only a lid, true duals, and longtube headers.
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Old Dec 6, 2002 | 12:05 AM
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99BackNBlackZ28's Avatar
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Default Re: Misfiring, HELP!

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by SiLveR2000 Z28:
<strong>check out your spark plugs maybe there loose or ssomething, number 7 should be on the right side it goes 1,3,5, and 7 so it should be in the very back if im not mistaken. i had the same problem a week ago and it was due to a loose wire on one of my spark plugs,and a wierd smell would come out of my exhaust which was probably cuz the gas wasnt getting burning and just oging straight through the exhaust.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yea dude? I get a smell of almost like raw fuel when I sit at stoplights for a minute or two, Ill have to check that out!
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