2007 Jeep Grand Cherokee Q&A
2007 Jeep Grand Cherokee Question: P 0302 code caused by engine cleaning?
Yes, the best thing to do is NEVER spray water on an engine unless it's on fire! Maybe not even then! Best thing to do is dry ignition on # 2 cyl. use a little WD-40. Pull coil on 2 and do this, inside the plug boot also. - pushrod
poss shorted coil pak also iv seen that - globalhelper