ok, i went to the local riding spot and while i was driving through a field, i gave it some gas and it backfired (i think), then the check engine light came on, and it was idling, running really rough. so i looked under the hood, and there was oil dripping from the PCV valve, with oil in my air filter, oil was around the valvecover, i checked, and still had plenty of oil. so i left, and drove it home, it ran rough all the way here and when driving everything was shaking and rattling. it isnt smoking or anything. i pulled the spark plugs, none of them are fouled, i just put a new distributor cap/button, wires on. i am pretty sure there is a cylinder missing. i wonder if it could be an o2 sensor or something?
so, i think all of that has something to do with it. is there any way to check for error codes on a 93 yj, without a computor diagnostic tool thingy.
so... have any of you guys experienced this? or what do you think?
1993 YJ 4 banger- cold air intake, 31" matercraft MT's, 1" boomerang shackles, bedlined rockers, Proline beadlock simulator rims, bedlined shorty corner guards, Bed lined tub, homebrew power steering skid, LUK stage II performance clutch.