Intake Backfiring - Forums at Modded Mustangs
 
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post #1 of 11 Old November 12th, 2007, 05:43 PM Thread Starter
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Cool Intake Backfiring

I HAVE A 90 MUSTANG WITH A LITTLE MODS DONE AND EVERYTIME I START IT UP IN THE MORNING IT WANTS TO STALL OUT AND WHEN I GO TO TAKE OFF IT STARTS BACKFIRING THOUGH THE INTAKE WONDERING WHAT IT IS. IF YOU CAN HELP PLEASE E-MAIL ME AT RYDENLOW88@AOL.COM
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post #2 of 11 Old November 12th, 2007, 05:43 PM
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modded?

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post #3 of 11 Old November 12th, 2007, 05:48 PM
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Is the spark plugs in the correct order? Sounds like a misfire? the only thing i can think of is the timing may be off or your getting to much fuel.. what are your mods? have someone scan your computer chip for problems. My guess is a malfunctioning sensor

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post #4 of 11 Old November 12th, 2007, 05:52 PM
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you probly have the firing order wrong
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post #5 of 11 Old November 12th, 2007, 06:24 PM
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it could be a bunch of things. check it for codes and let us know

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post #6 of 11 Old November 12th, 2007, 06:35 PM
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could be vaccum leak also..but prob firing order wrong, bad rotor...etc...

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post #7 of 11 Old November 12th, 2007, 08:43 PM
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i think its the timing. try to bump it up a bit. my car loves 14 degrees. good luck

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post #8 of 11 Old November 12th, 2007, 08:57 PM
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Does it just do it when the engine is cold? What is the timing set at?

My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


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post #9 of 11 Old November 12th, 2007, 09:27 PM
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I also have the same problem, but mine only does it when the engine is cold.. is that normal? I gave the car a complete tune up, wires, rotor, cap, plugs, fuel filter, etc.. and it still does it
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post #10 of 11 Old November 12th, 2007, 10:01 PM
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mine only did it when it was cold but when i set it at 14 degrees, it ironed its self out

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post #11 of 11 Old November 12th, 2007, 10:17 PM
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mine does it when it's cold now and sometimes when its cold the rpm goes down about 4 mins in the warm it goes down likes its about to stall then up its nothing like the idle surge though I had that before...
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