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.

Self Test help

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Old 09-04-2006, 05:22 PM
  #1  
Boss_Hotrod
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Default Self Test help

I need some help doing a self test. Im trying to use a 12v LED. When I plug everything in I just get a solid red light. I tried hooking up the connection fromt he STO to the battery first then the jumper and then did it in reverse. Both times I got a red light. The first time I tried it we ran the cr for a few minutes (probably about 10) to check for a tick. The next time was after we drove it. Ive checked it many times since hten and still get a solid light. The battery has been hooked up since saturday. Any help as to what I might be doing wrong is greatly appreciated.
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Old 09-04-2006, 06:27 PM
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Joel5.0
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Default RE: Self Test help

1. Battery (+) to LED to STO
2. STI to SIGRTN, if it doesn't work....STI to Battery (-).

If no dice, have a No Codes condition.
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Old 09-04-2006, 08:18 PM
  #3  
Boss_Hotrod
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Default RE: Self Test help

Tried that. Still just a solid light.
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Old 09-04-2006, 08:23 PM
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Joel5.0
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Default RE: Self Test help

http://fordfuelinjection.com/index.php?p=44
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Old 09-04-2006, 08:29 PM
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grabbem88
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Default RE: Self Test help

so just run a wire from sti to a ground and that's it?
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Old 09-04-2006, 10:27 PM
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Default RE: Self Test help

nevermind you was right joel...same codes as before....81 82 84 85 34...derf
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