Hello Everyone. I am a new poster but I read the forum alot. I have a 2003 Disco II SE-7 and I power washed the engine the other day and now I am getting these error coded P1300 (Manufacturer specific DTC See Service Manual), P0303 (Cylinder 3 Misfire), P0134 (O2S ckt no activity detected), P0305 (Cylinder 5 Misfire), P0307 (Cylinder 7 Misfire) I cleared them but have not driven any distance to see if they come back on. Should I be worried and what is P1300 since I have no idea. Thanks

 

I wouldnt worry too much about them if they havent come back. You probably just got something wet that you shouldnt have.