got a question. was looking at a 98 hatch and i pulled the codes and it had a 1-4 misfire but it also had a lean code.

misfires usually make it go rich so what could be. i was thinking maby a vacuum leak since it will lean it out enough to make it misfire but it would have to be a big *** leak.

only mods on it are you standard hot air intake and headers back exhaust.

 

List the codes exactly please.

 

po171 (bank 1 to lean)
po131 (o2 sensor low voltage)
po141 (bank 1 sensor 2 heater) no cat full exhaust so whatever.
po301-304 (cylinder 1-4 missfire)
po300 randmoe missfire
po170 fuel trim malfunction



i cleared all codes after i baught it and drove it home and no problems so maby its an old problem that was never cleared idk ill keep an eye on it though.