Topic: P0304 code in daughters 97

[oldjeep]

Hello all

Have a recurring issue in my daughters 97 2.5L.  Started throwing a P0304 code a few weeks ago.  Replaced plugs, cap, rotor, wires and it came back a few days later.  Have done some googling but haven't found many ideas.  Any thoughts on what might be happening?

[neale_rs]

Maybe a bad connector somewhere, maybe even at the computer.

[chardrc]

Have you looked at the injectors? I had a recurring misfire code on my 02 wj which has the 4.7l (I know not the same engine....). Ended up being a injector clogging up. You could try swapping injector #4 with another injector and see if the code follows the injector.

[oldjeep]

Have you looked at the injectors? I had a recurring misfire code on my 02 wj which has the 4.7l (I know not the same engine....). Ended up being a injector clogging up. You could try swapping injector #4 with another injector and see if the code follows the injector.

Actually just ordered a set of rebuilt 4 hole injectors for it, as well as a new set of rods and lifters.  Figure I'd throw $125 worth of parts at it and see what happens. 

[oldjeep]

FWIW, the injectors fixed the problem, no codes in weeks.   Which is good since we just put it up for sale yesterday.