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4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

My car pops when you start it

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Old 10-31-2010, 04:24 PM
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Hangwire
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Originally Posted by oxfordgt View Post
I will say it is 100% the Alt. going out. Unplugging the CPS and the problem going away is a dead give away that it's the ALT. When you unplug it the computer goes into default and double sparks (compression stroke and exhaust stroke) since it has no idea which stroke it's on. The Alt. is sending out an electromagnetic field that is disrupting the CPS and causing the computer to spark late in your case with the excess fuel smell.
Awesome information there.
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