I have a bad boot on #3 spark plug. Rough idle, check engine light with #3 misfire code P303. The boot tested open. After the boot is replaced will the injector cutoff for that cylinder automatically reset or do I need to do something additional to enable the cylinder?

Funny, tried to repace with a test spark plug wire. (not MB) for test and cannot get spark. Is there a spark automatic cutoff for #3 also?

The coil also connects to the #4 plug and it appears to be firing and only the P303 code is being set. Could the coil be bad for just the #3 plug only and still fire the #4?


Thanks

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Martineau Gauda
mgauda@sprintmail.com

96 C280 Mercedes
82 Rolls Royce Silver Spur