P0301, cylinder 1 missfire

[H3Wolf]

Has anyone had an issue where you get a check engine light once you evap monitor is complete, and it's a cylinder 1 missfire. Replaced the spark plugs and the coil pack for the cylinder 1.

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[RamRod]

What about the plug wires?

How many miles?

Take a wire off of another known working cool and move it to #1 And see how that goes

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[H3Wolf]

97000

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[Happy Hummer]

Possible intake manifold loose? Injector clogged? Wire in harness damaged?

 

[H3Wolf]

I'll check the manifold this weekend,

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