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Car Backfiring!!!!!

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Old Apr 29, 2007 | 07:30 PM
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From: EAST LA Fooo!!
Default Car Backfiring!!!!!

In the last 2 weeks ive put in the car a ported FAST 90, NW 90 TB and a DMH cutout (and it has all the other stuff in my signature) and my car is backfiring!!!! sometimes it backfires when i turn it on or am barelly taking off from a stop (red lights,stop signs) but it will defenetly backfire if i slam on the gas!!! so what do you guys think it is? and can i **** up the engine running the car like this? im not slaming on the gas anymore but i do need it to get to work!!! Thanks alot guys!!!
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Old Apr 29, 2007 | 07:43 PM
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From: laredo,tx
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Vacuum leak somewhere.......Put the cap back on the cut out and listen for a whistle or blower type sound......
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Old Apr 29, 2007 | 08:00 PM
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From: EAST LA Fooo!!
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I put the cap on and i revd it allittle and it still backfired and i kept an ear open for a whistle or any indication of a leak and nothing!!!! my neighbor told me it might need a tune!!! what do you guys think?
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Old Apr 30, 2007 | 03:50 AM
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From: Justin, TX
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Cam it. Tune it. That should take care of the issue.
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Old Apr 30, 2007 | 08:52 PM
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From: EAST LA Fooo!!
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but can the engine get messed up by running the car like this?
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Old Apr 30, 2007 | 09:02 PM
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From: Minnesota
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U sure you got all the injectors/wires seated properly?

Did you take off the injector harness completely off?
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Old Apr 30, 2007 | 11:56 PM
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From: EAST LA Fooo!!
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Originally Posted by waterbug1999
U sure you got all the injectors/wires seated properly?

Did you take off the injector harness completely off?
YES!!! everything is on there properly!! i took the injecters conected to the fuel rails off!!
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