2002 Mustang GT Possible electrical issue - Ford Mustang Forum
 
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post #1 of 2 (permalink) Old 06-11-2013 Thread Starter
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2002 Mustang GT Possible electrical issue

Well, I need some help and I am going to try to explain this as well as possible. I'm trying to diagnose and get an idea of what I need to fix an issue with my 2002 Mustang GT and it's a manual (if that makes a difference).

The mechanically noticeable problem is a pretty strong hiccup.. seems like either trac control actuating at inappropriate times or random fuel pressure loss.

-I have new injectors, new coil packs, new spark plugs and a newer fuel pump.

The electrically noticeable problem is the theft light flashing occasionally, trac control light coming on at inappropriate times (when the tires are not losing any grip), check fuel cap light is on (the fuel cap is securing on, tried multiple times to re-tighten it) , brake light flashes even when the e-brake is down, seat belt light will come on even when buckled, but does not make the noise if buckled. Oil pressure, fuel, speedometer, tac, and temp gauges are functioning properly and the lights on the gauge cluster are functionally properly as well.


I work for a car dealership and I usually do all the work on my vehicle myself so I am pretty familiar with it mechanically, but these electrical issues are starting to confuse me. One of our service techs ( Subaru tech, not ford) suggested that the gauge cluster could act as a central hub for these sensors which lead to my thought that the hiccup could be the traction control actuating when it shorted out, problem is the light is not always on when it decides to hiccup. It is better when I am on the gas and above 3000 rpms, but does still hiccup.

My questions are:

Has anyone had a similar issue?

Could this be one module shorting causing all of these issues or could there be multiple issues?

If the gauge cluster does act as a central hub, then would a new gauge cluster include these sensors or would I need to buy them separately and pigtails for the wiring?

I don't know what else to ask at the moment, I had more questions when I started this but now I am frustrated after explaining the whole ordeal. I hope this makes sense to you guys and thank you for any advice you can give me.

Thanks,
Christina
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post #2 of 2 (permalink) Old 06-12-2013 Thread Starter
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Update

Codes: P1000, P0455, P0401, P0457, P0172, P0175, P0316, P0301
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