I’ve got the p0302 code on my 2014 caravan. It has 155,000 miles on it. It has been in the shop a few times for rockers arms and camshaft. We have taken meticulous care with maintenance. Now we got the p0302 misfire on cyl 2. It’s been to two different shops and they have both changed out the spark plug and coil pack and did leak down test of the cylinder check camshafts and rockers. The second shop changed out the injector and still didn’t help. The mechanic did say when he had it torn apart it looked like the #2 injector may have been spraying more fuel. He had the valve cover off when he observed this so I’m not sure what he was seeing. His next plan will be to tear off the front of the engine and check timing and cam phaser on that side. $300 to do that and he doesn’t seem to convinced that’s what it is. So far I’ve got over $500 in diagnosis fees and the vehicle still runs like crap and has same code. Any help would be appreciated.