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ZX2 check engine light

Discussion in 'Ford ZX2' started by Paul Michelsen, Jun 17, 2017.

  1. Paul Michelsen

    Paul Michelsen New Member

    Jun 17, 2017
    Likes Received:
    My 2003 ZX2 will flash the check engine light and set multiple misfire codes, Po301, P0302, P0303, P0304. Car had 156k miles, runs great, smooth at all rpms, gets 35+ mpg on the highway. This only happens at 2500 rpm and above or about 63 mph! Have replaced coil pack, plugs, wires, timing belt. Help ! Need to pass emissions test ! I am in Aurora IL
    Last edited: Jun 17, 2017
  2. Action

    Action Moderator Staff Member Respected Member

    Mar 22, 2014
    Likes Received:
    Phoenix, AZ 85008
    Welcome to the FFO!

    Stop throwing parts at the problem hoping to hit the problem. It is very expensive to do that.

    Pull the codes and post
    Post the mileage
    List city and state.


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