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Backfiring! WTF

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Old Dec 1, 2002 | 08:24 PM
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99BackNBlackZ28's Avatar
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Default Backfiring! WTF

Well my car is really backfiring crazy style lately!

I understand that after headers the car will run rich, but I think I'm running super-rich. The car backfires when the engine is cold..I figure thats common, and it also tends to backfire if I sit at a light or whatever for more than a minute. My main concern though is that the car is backfiring especially in 3rd gear, above 3800rpms. The car starts going POPOPOPOPOP POP POP only in third gear at above those RPMs. No other gear really has that problem. What's up with that?
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Old Dec 2, 2002 | 07:43 PM
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Default Re: Backfiring! WTF

Did ya just put headers on? Maybe a loose plug wire or cracked plug?
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Old Dec 2, 2002 | 09:01 PM
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Default Re: Backfiring! WTF

get together with somebody who has autotap. That will answer a lot of questions...
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Old Dec 6, 2002 | 05:56 PM
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Default Re: Backfiring! WTF

Header gasket maybe?
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Old Dec 6, 2002 | 08:08 PM
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Default Re: Backfiring! WTF

Same thing happened to me after header install. Turned out it was the crappy Bosch plugs I put in. Everything went away with ngk's
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Old Dec 7, 2002 | 09:30 AM
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Default Re: Backfiring! WTF

NGK rules <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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