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What does p-0303 mean for a 2005 van?

Updated: 10/25/2022
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15y ago

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p0303 means cylinder #3 missfire detected bad plugs or wires also do compression test on cylinder#3 to rule out bad cylinder or valve could also be bad coil pack check spark #3 no easy job cyl-3 back 3 cylinders

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15y ago
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Q: What does p-0303 mean for a 2005 van?
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