Question about 2005 Ford Mustang
Because the PCM went into default mode when you unplugged it. When you plugged it back in, the PCM tried to adjust and reset. Opening the IAC motor causing to much air to come in and killed the engine. Fairly normal response for the engine. Since you modified the engine, did you modify the PCM? Can't do one with out the other.
Posted on Apr 11, 2015
I suggest you go to the Mustang Owner's forum to get your answer. You modified car presents changes to a basic system that is beyond a general forum like this one. My guess is: since you have a modified car and everything is connected properly, then you probably have modified the car beyond it's pre-set parameters for operation. You need a new chip programming to allow the modified parts to operate with your ECU under the new parameters.
Posted on Apr 10, 2015
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Posted on Jan 02, 2017
it'll either be your ignition system (spark plugs, distributor cap, etc) or more likely your fuel system (most likely your fuel pump or your fuel filter)
Posted on Sep 10, 2009
IS THE CHECK ENGINE LIGHT ON?IF SO GET THE CODES READ AND THEY SHOULD LEAD YOU TO THE PROBLEM.IF THERE ARE NO CODES THEN YOU NEAD TO CHECK OR REPLACE THE FUEL FILTER,OR YOU MAY NEED A THROTTLE POSITION SENSOR.
Posted on Oct 17, 2009
silly question, however did you check the air box for nests. it is not uncommon for rodents to climb in and make themselves at home. i would also say to get a maf from ford. check ALL around the engine compartment and underneath for evidence of rodents and their leavings. youll be very suprised what you may find.cheers
Posted on Dec 19, 2009
You may have to dig deeper for a vacuum leak. It's possibly the intake manifold gasket. Try spraying some starting fluid around the intake manifold. Also try disconnecting the brake booster and plugging that hose, the diaphram in the booster could be ruptured, causing a vacuum leak. Check the PCV valve and hose too.
Posted on Mar 06, 2010
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