Hello guys
Having an misfire issue at idle on cylinder 7 only, Silverado 2012 6.2L ( L9H ) the truck has TVS1900 supercharger and full bolt-ons.
what we did trying to get rid of this issue :
1- spark plug has been change
2- spark plug wire has been change
3- coil has been change
4- injector has been swap with other cylinders injectors that has no misfire
5- injector harness has been checked
6- both heads has been checked
7- pistons and rings and connecting rods are new
this issue occurs after water leaked form the supercharger in the the cylinders
the misfire only shows at idle and makes the Truck idle rough, can a bad O2 sensor or maf cause this issue ?
Please take a look at the log and advise
thanks