Miss the code
When u moved the coil.
If the code stays in cylinder 1 when u moved the coil.
I would check compression.
Compare to any other cylinder.
If possible check all.
See if cylinder is noticeabley lower.
If you moved the coil and the code changed..
Example from cylinder 1 code p0301.
And you moved the coil to cylinder 3
And the code now says p0303.
You know it's the coil
If it comes back to the same cylinder 1. You'll have to see if the compression is lower then check rings valves head gasket
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