Subaru Problems? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner till early morning.
Normally rain effects the plug wires. I would start there. Make sure to use dielectric grease on the coil wire boots. It is not the CMP or CKP sensors, that would effect all cylinders. would also reseal the connectors to the computer, coil, and injector with the same grease applied to the connector seal and pins.
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Thanks for using Just Answer, Chris
Hello again Chris here,