I have a p0300 code coming up on the comp. The motor runs fine untill it gets wet. rain/carwash I have tried to spray each coil with water and could not get it to misfire. Then I brought out the water hose and sprayed it top of the motor this found the misfire. This thing has 8 coils and I realy don't want to replace them all. My Queastion is there some tihing else that could be causing the misfires.