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.

Need some help with my 94 GT guys

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Old 05-11-2010, 12:09 AM
  #21  
mattdel
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Agreed. But, the code will return. That code cannot appear without a severe hard fault with the PCM. Clearing codes and re-testing after a drive cycle is a waste of time, from a flat rate point of view, but.. whatever makes her sleep at night, I suppose.
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Old 05-11-2010, 03:15 PM
  #22  
AdderMk2
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Originally Posted by mattdel
Agreed. But, the code will return. That code cannot appear without a severe hard fault with the PCM. Clearing codes and re-testing after a drive cycle is a waste of time, from a flat rate point of view, but.. whatever makes her sleep at night, I suppose.
I love how you are so sure of that. I have gotten a 511 twice in my car. Is my ECM bad? nope.

First time I had a bad ECM ground
second time, my SCT chip had wiggled itself loose on the J3 port
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