I recently bought a used 96 altima which has been giving me a good
amount of trouble. It takes a very long time to start up, but does so
consitently. About a month ago the check engine light came on, and the
car began to "rumble" and sputter at idle.Ignition wires, plugs,
filters etc were all replaced. Problem was not solved...Then had fuel
injector on the 4th cylinder replaced which seemed to have solved the
startup issue as well as the idling problem, until a couple weeks later
when both problems returned. The check engine lights ive gotten
recently were: multiple misfire then oxygen sensor a week later...today
when it came back I checked the ecm codes myself and got code 33
(oxygen sensor?) and 65 - 4th cylinder misfire. any ideas? the front
oxygen sensor looks fairly new. are these problems related?