Hi I have a 05 Bentley continental Gt right at 91k miles and recently i have multiple misfire codes (which its time for servicing) , but could the spark plugs be causing P0243 for wastegate solenoid? The car runs perfect other than the skip from the misfire occasionally.

 

P0243 indicates an electronic anomaly of the vacuum solenoid. Should n75 fail, engine out repair. The internal ground fault referenced by this trouble code is the precursor to the component failure. The current fault not resulting in performance change is because the ECU is seeing a random issue.

Would be interested to know the misfire codes. Misfires could support vacuum leak?

 

That's exactly what it is, I just got a diagnostic test from a shop and its the vacuum lines on the tranny.. FML