My 02 WRX is having p0303 and sometimes p0302 could my valves have gotten hosed on the drivers side? I have changed all the plugs and swapped around coil packs with the same results. sometimes around 3k rpm all fire correctly but mostly running on 3 cylinders.
All advice welcome as my local dealer just did the fuel line recall and didnt plug in the driverside tumbler all the way and it vibrated off (among other things).
The rebuilt motor only has about 1000 miles on it now. Very dissapointing.