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 HELP finding a new ECU

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Old 09-16-2008, 01:03 AM
  #11  
eaglemustang
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They have already tried Napa and set the wrong one twice. Napa must have them packaged wrong. Also the stator tested fine even being heated at the dealership. I`m thinking about sending the unit to Flordia to be repaired. Does anyone know if the stock ecu settings can be changed for better performance once its repaired.
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Old 09-16-2008, 09:01 AM
  #12  
mjr46
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I would be suprise if a new ecu fixed the issue, my bet is the stator, I gaurantee they ford dealer hasn't tested it properly, depends on if a noob is doing the test work, if there is no injector pulse it's possible the PIP signal is missing which signals injector pulse, ask them if they tested for the PIP signal when the prob is present
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Old 09-16-2008, 01:05 PM
  #13  
eaglemustang
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I`ll check but the tech has been there for at least 20 years. The ecu guy says the processor is failing. Does anyone know if the stock ecu settings can be changed for better performance once its repaired.
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Old 09-16-2008, 03:13 PM
  #14  
mjr46
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a chip is installed in the j3 port to bypass factory settings and run off new parameters
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Old 09-16-2008, 03:35 PM
  #15  
bruehlc
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ECM should be a t4mo.

I had a 94 GT and I did a trans swap to t-5. My auto ecu would warm up and kill the motor. Once I swapped in the t-5 ECM the car ran fine. What does an auto swap have to do with this? Nothing

But, you should be able to find a T4MO on ebay.
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Old 09-19-2008, 10:10 AM
  #16  
eaglemustang
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Will tailights out of a 1998 Mustang GT mount up for 1994 GT?
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