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  1. DIY: Ionic Sensor resistance?

    E60 M5 and E61 M5 Touring Discussion
    Hey all, I'm trying to diagnose a cylinder misfire and I've taken the coil out from the bad cylinder and measured it's resistance, and it reads 0.5ohms on the primary and 65K ohms at the spark plug end. This seems reasonable to me though I haven't measured an assumed good ones spark plug end...
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