hi name is Jon I have a 04 nissan murano getting a misfire code p0306

Question

turns out had a misfiring injector #6. well to make a long story short burned and melted a piston. We replaced piston and head gasket and injector. got her running and same problem on misfire cyl #6. We are now into the project for a ton of money and don't know where to go from here? can you help?

Answer 1

P0300 Random misfire

P0306 Misfire number 6 cylinder

Injectors are solenoid which is capable of shorting out the injector driver of the PCM . A PCM may be required for the solution.