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diagnostic port

  1. MKI, 84-89 NA & SC
    Hi there, I'm trying to set the ignition timing in a 1985 MR2. When I jump the pins in the diagnostic port as per the instructions, I don't get any change in the timing advance so I can't properly set the timing to 10 degrees BTDC. Additionally, when I try to just rotate the dizzy through its...
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