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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

Bad PCM?

  • Thread starter Thread starter MrPuffels
  • Start date Start date Wednesday at 6:26 PM
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MrPuffels

New Member
Jul 22, 2026
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Daytona Beach, FL
Wednesday at 6:26 PM
#1
  • Wednesday at 6:26 PM
  • #1
I have a 2009 mustang gt that I installed an On3 turbo in back in December. It ran great until about two weeks ago where the electronic throttle control light keeps coming on and puts the car into limp mode. I also get codes P0102, P0010, P2008, and P2107. I have replaced the tps and throttle body motor and no dice. I think I have narrowed it down to either wiring or the PCM. I get 12v, 5v, and ground to my maf for code P0102 and I have 12v to my solenoid for code P2008, so I'm inclined to say its not wiring but I'm not sure. Is there anything I'm missing? Or should I just bite the bullet and replace the PCM.
 
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