P0303 code
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Junior Member
Joined: Aug 2024
Posts: 4
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P0303 code
P0303: 2015 F150, 3.5l eco boost. Have installed new plugs (all), swapped coils, still says P0303 Permanent as soon as I turn on the key, Any ideas? I am leaking towards a bad plug to the coil. I think a bad injector would throw a specific code?
Senior Member
Joined: Apr 2022
Posts: 4,625
Likes: 1,306
From: Horsepasture, Virginia
Welcome to the forum. I cannot help with your question, try posting your question in the sub-forum for your year truck.
2015 - 2020 Ford F150 - Ford F150 Forum - Community of Ford Truck Fans
2015 - 2020 Ford F150 - Ford F150 Forum - Community of Ford Truck Fans
