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  1. 5.0L Tech
    Hi All, I have a 1990 Ford Mustang GT. Key on, fuel pump won't prime just clicks over and relay under drivers seat clicks on and off. New FP Relay, EEC Relay. I jumped the OBD port to trick the fuel pump into running and it primed but still think it may be failing. I am unable to pull any...
  2. 5.0L Tech
    Hi guys, Haven't been on here in a while. Anyway I've been blowing my brains out over this engine swap. I have a 1990 5.0 fox body LX automatic. Engine blew last month. I ended up buying a used engine and transmission. Pulled it out of a 1995 GT. I made sure to take all the harnesses, CCRM...
  3. 5.0L Tech
    I just purchased my my 1990 GT Mustang not too long ago and it was running fine. Just recently it started bogging out in idle. I have already checked the throttle position sensor. The voltages were all in good ranges, except for the black wire (the signal return, ground wire was only 0.3 ohms...
  4. 5.0L Tech
    I just purchased my my 1990 GT Mustang not too long ago and it was running fine. Just recently it started bogging out in idle. I have already checked the throttle position sensor. The voltages were all in good ranges, except for the black wire (the signal return, ground wire was only 0.3 ohms...
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