5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

problems up the a$$

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Old 09-13-2010, 05:39 AM
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GTnotchback
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Default problems up the a$$

ill try to make a long atory short. Got a chip burnt for my computer. Realized the 02 sensors were both broken so i replaced them. Moved timing down to 14 deg. and put the pill back in. Placed the chip in the computer and the car ran like a raped ape at first then started running super rich. Hooked it to the laptop and 02 sensor were not working. Found broken wire hooked it up and fries the computer. Ended up having the orange wire ground behind the intake not grounded.(wasnt hooked up) So i hooked it up an bought another computer. Got it home and realize i bought a junk computer. (thanks dam guy). Got another computer and i check it in the other stang and it fires right up so i know i have a good computer now. So i put it in my car and my car will not start now at all. It almost acts like it wants to fire a little but nothing happens. Looks like im not getting spark. On the laptop it shows the tps,o2sensors, and everything are all out of wack and not funtioning. im assuming i have some kind of electrical problem. I tried a different injector harness and it didnt change nothing and also went through the computer harness and found no problems. Any ideas? Im getting really fed up with this junk. could it be my distributor tfi module? open to any suggestions?

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Old 09-13-2010, 05:45 AM
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i also forgot to mention that i tried another coil and it didnt help.
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Old 09-13-2010, 08:18 AM
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anyone have a suggestion/idea???
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Old 09-13-2010, 08:57 AM
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Sidewayz6.0
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The easy solution is to pull all your EFI **** off, and put a carb on it.

I chased issues like this for awhile, and just bought a new harness. The original one that was in my car was hacked up and spliced everywhere. However, even after all that, it still won't run the fuel pump. So I just have a hotwire kit on it.
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Old 09-13-2010, 10:14 AM
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Originally Posted by Sidewayz6.0
The easy solution is to pull all your EFI **** off, and put a carb on it.

I chased issues like this for awhile, and just bought a new harness. The original one that was in my car was hacked up and spliced everywhere. However, even after all that, it still won't run the fuel pump. So I just have a hotwire kit on it.
ya i know this but i would really like to keep my fuel injection. carb is a last resort. ill try a new tfi tonight but after that i dont know what else to try. thanks for the reply
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Old 09-13-2010, 10:37 AM
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enix187
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fuse links, start checking them
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Old 09-13-2010, 10:44 AM
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Originally Posted by enix187
fuse links, start checking them
where at and how do i check them?
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Old 09-14-2010, 05:13 AM
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it was the tfi module. the car start good now but just runs super rich for some reason.
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