FUCK... HELP

[GRANT]

so I drove my yj all day today, to school (40 mins away), and out to dinner. I then go to my girlfriends house... the jeep is still running fine. I start driving home and after a little while I notice that when I gas it a little bit it bogs down. So I brush that off and keep driving for a few more minutes and then it gets really rreally bad, almost like there werent cylinders firing. So i pull over, and the jeep is sputtering really bad and I turn it off. Still have coolant, oil, etc, and everything appears to be fine. I drive it the last minute of the trip home and it is not sounding healthy at all. It was fine for couple seconds then just got worse again.

Anybody have any clue what it could be... because I am at a loss..

[GRANT]

its also idling rough..... from the inside.. the whole jeep shakes pretty hard............

[1cleantj]

my first guess would be lack of fuel pressure. not enough fuel will do what you described

[CSaddict]

Any CEL's? When is the last time you did a tune up? Filters, plugs, and such?

[WickedXJ]

Sounds like when my jeep had the crank position sensor blow. they are notorious for going.

[Tom]

pull your plugs and check their color. white means not enough fuel, black means too much.

[kracker]

cat converter?

[Buffalo Phil]

My jeep used to do that when it Rained. Then I got a new coil and distributor cap.

[Henchman]

My jeep used to do that when it Rained. Then I got a new coil and distributor cap.

x2 on that

[GRANT]

my first guess would be lack of fuel pressure. not enough fuel will do what you described

thats what I was starting to think. I was maybe thinking of checking my fuel pressure

Any CEL's? When is the last time you did a tune up? Filters, plugs, and such?

no cel's. at the beginning of the summer I did plugs dist. cap, intake bla bla.

Sounds like when my jeep had the crank position sensor blow. they are notorious for going.

hmm. It might be this, so I will have to check. How would I check?

pull your plugs and check their color. white means not enough fuel, black means too much.

I will do that very soon first thing.

cat converter?

HA. I do not have a cat.. it made a rattling noise so I took it out and the jeep ran like a champ.



and I dont think its the dist. cap or coil... that seems fine.

I'm gunna go outside soon and see what I can find

[Trailer Ray]

Pull a few plugs and if they seem ok check the cps. It is behind the motor on top of the tranny where is meets the motor. There's two bolts to undo and it will come out. If its got all black shit on it clean it up a bit and put it in, run it and see if it still does it. If not, go get a new one

[GRANT]

it also sounds like a lawnmower if that helps

[GRANT]

ok. so.

checked all plugs and wires, theyre good
fuel seems to be fine
when I start it, the intake seems to be making a loud noise that I have never heard before. Engine seems to not be firing on all cylinders, jeep shakes like a mofo then stalls out.
CPS was really dirty, pulled it out and cleaned, everything worked just as bad if not worse. could the CPS really make the engine run this bad?

[GRANT]

I just checked the codes.. even though the light wasnt on... 13 and 33.

No difference recognized between the engine MAP reading and the barometric (atmosphereic) pressure reading at start-up

and 33 is for the ac... which is out.

[Tom]

hows the cap/rotor? any arcing?