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Thread: Misfire After Wash

  1. #1
    Registered Member

    2003 Protege5 Sunburst Yellow

    Join Date
    Sep 2018
    Location
    Phoenix, Az
    Posts
    2

    Misfire After Wash

    So i have an 03 Mazda P5 with 183k miles. Yesterday I was washing it and it started missing hard. It has a “Cold Air” intake so I figured maybe I fucked up and got it wet. After about a minute it went away, but now only in gear at about 1,500 rpm it will misfire. When it first happens it set a cylinder 2 misfire code which I cleared and hasn’t came back since. Thanks in advance for any help you guys can give me.

  2. #2
    Registered Member

    protege5

    Join Date
    May 2016
    Location
    GA
    Posts
    265
    You got the coils wet or water in the spark plug hole. Remove the coils and spark plug wires (not the spark plugs), takes less than 2 minutes. blow compressed air in the hole and put them back in, should be fine after that. Squeezing a good bit of dielectric grease in the spark plug caps before you put the coils and wires back on can help prevent it from happening again. And don't spray things directly with the pressure washer like ignition coils, air flow sensor, obvious electrical components, etc.

  3. #3
    Registered Member

    2003 Protege5 Sunburst Yellow

    Join Date
    Sep 2018
    Location
    Phoenix, Az
    Posts
    2
    Thanks, that’s what I was thinking. I just did the plugs and wires, not the coils, so hey have dielectric grease in them already but apparently it didn’t help much.

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