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  1. J

    Engine Misfiring on Bank 1

    I fixed it, it was an O2 sensor was shorting out, thats for y’alls help.
  2. J

    Engine Misfiring on Bank 1

    No it switched before then, but i replaced plugs, wires, IAC, I cleaned the MAF sensor, and i replaced the coil about 3-5 weeks ago. Its currently showing codes P2196 and P0300. But no it didn't switch after i changed it did some time before.
  3. J

    Engine Misfiring on Bank 1

    Recently my 2003 Sport Trac XLT 4.0 started i misfire on bank 1 and threw codes P0300, P0301, P0302, P0303 and the o2 sensor read rich. I replaced the coil and nothing happened but it would only misfire under load and then again it would only do it every so often and not all the time. Now the...
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