I have a 2010 Odyssey it's got 150k miles on it. It's been running rough almost acting like it's going to cut out. This was happening a few months ago and I replaced all the plugs and also the alternator. It seemed to fix things until now. It has also been leaking oil from the VVT solenoid and the timing cover. The power steering pump is also bad. The power steering only works when I'm hitting the gas. It seems like everything is happening at once. The thing that I need to fix first is the misfire. From the threads that I have looked at it seems like cylinder one is on the back passenger side of the engine. Should plugs go bad within a few months time ? Should I try and swap the coil packs and possibly replace the plugs again? Can anyone confirm the location of cylinder 1 on a 2010 Odyssey? Any help you folks could provide would be much appreciated.