codes | Ford Thunderbird forum club group 1955-2005 models

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  1. 0

    2004- OBD Code P0304 where is cylinder #4?

    According to chart I have, the #4 cylinder is on pass side, nearest to firewall. I checked the harness, replaced both the plug and coil pack, and I still have rough idle and keep pulling code 0304 (misfire cylinder 4) and 0316 (misfire detected first 1000 revolutions). WTF? Is my chart wrong? Is...
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