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self test

  1. EEC-IV self test not working

    1980-'96 Bronco Tech
    Hi all, I'm having an issue that I've been racking my brain about for the last couple of weeks. My truck has a check engine light and bogs down when I hit the gas and kinda stumbles. I tried the jumper wire method to pull codes which I have done before and it has worked no problem but when I try...
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