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.

Rough idle, KOEO and KOER does not work

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Old 11-19-2016, 08:30 AM
  #11  
Contidave
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Hey think I found it. When I put the cross brace on, it has the self-hold fastener, which sliced right through the O2 sensor wire.
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Old 11-21-2016, 07:38 AM
  #12  
88 orangepeel notch
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Have you cleaned the MAF ? It doesn't take much contamination on the sensor wires to screw with the readings.

Just to clarify, your still not able to read codes ?

Also, it's still a good idea to know fuel pressure for peace of mind. An inline gauge or even a cheaper pressure tester is all you need. Minimal investment for maximum return when wrenching on your own cars. And who doesn't like more tools ........


EDIT: Sorry, I didn't see your last post. Good find on the cut wire. That will definitely help matters lol.

Last edited by 88 orangepeel notch; 11-21-2016 at 07:52 AM.
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Old 11-29-2016, 06:27 PM
  #13  
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Yes still not getting codes. That is on my list and I guess I'll dig into that next spring. MAF is clean. For now the car is running and I'll drive it on the dry days.
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Old 11-30-2016, 06:40 AM
  #14  
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Glad to hear. Great job on sticking with it.....
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