Throwing this out for feedback or whatever,
The WRX was running very rough at idle with very little power at the start. However once the RPM's went up the power came on. The shop where I take the WRX followed SofA diagnostic step and replaced the plugs, the coil pack and the injector but alas the CEL PO302 refused to die and go away. Well the next step is a broken valve, spring or seat on #2 cylinder. The engine comes out the head comes off and the head/valve/seat/spring gets repaired, if that is the problem. It just doesn’t get any better than this. Any suggestions/recommendations,besides jumping off a tall building!