Good morning yall,
I just acquired a 2003 G35 6 speed coupe. and I can't seem to find the reason for a cylinder 1 misfire. For context the vehicle has multiple issues when bought and brought to my buddies house.
The car came with an aftermarket alarm and already removed. Replaced the no name plugs with NGK plugs,
we thought the injector was bad on cylinder 1 so we got another and replaced. All parts was baught from Z1, replaced the valve cover gaskets. Because of leaks.
has intake plenum spacer, replaced lower plenum, intake plenum and same gasket on upperside of the spacer. Was good ole amazon spacer. We've swapped the injector multiple times but still has what seems to be a misfire on cylinder 1. Swapped the coil pack connections on 4 and 6 and helped Slighly. Sorry for the rambling.. just trying to remember everything. Thanks for the help!