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Topic Review (Newest First)
06-30-2010 07:32 PM
hannahuffster
Quote:
Originally Posted by flatline View Post
I'll take a look at mine and see if I can give you a better idea on the wiring.
Hey thanx - Mine has on the sensor side: 2 white wires, a black on and a gray one -- On the jeep side it has a green wire and 3 dark gray wires...
06-30-2010 06:09 PM
flatline I'll take a look at mine and see if I can give you a better idea on the wiring.
06-30-2010 05:11 PM
dubVjeep This Might Sound Silly, But I Had the same problem about 2 years ago with my 94 Toyota Celica, Everything went crazy haywire, all tests were fine, and no Codes thrown. Tested the batter and all was good. Turns out there was a dead cell in my Battery That was causing things to go nuts. Not sure If thats even close to the prob you are having but you may want swap the battery out.
06-30-2010 05:06 PM
hannahuffster I cant just hook-up the O2 sensor back up. Somehow the harness was destroyed and pulled all the wires out of the clip on the jeep side of the harness. There are 4 wires and the 4 colors on the O2 side dont match any of the 4 on the jeep side. I have heat shrinked all 4 wires on the jeep side (each with their own color) but cant start guessing which go where until I can get the jeep to run first.

I guess I am going to replace the stator to marrow and go from there...
06-30-2010 05:02 PM
hannahuffster
Quote:
Originally Posted by YJoey View Post
OT: Where are good spots to wheel around there? Im only a 45min trip from you. Have you been to Disney yet?
There is a decent place just north east of town lots of chats, trails & mud. Lots of old remnents of mining. Out by "Snow Ball" chats (as it is known around town). I have been to disney, just not with this jeep yet...
06-30-2010 03:05 PM
flatline 12-battery been disconected, 34-open/short in speed control circuits, 44-engine coolant sensor. don't know what 34 is. 12 is normal to flash, temp sensor shuldn't stop it from starting. I'd change the temp sensor, hook the o2 sensor up, and check for spark. 44 can also be ecu battery temp. voltage circuit.
06-30-2010 03:02 PM
chensley
Quote:
Originally Posted by hannahuffster View Post
ok, figured it out with a little online research (didnt know you could do that). Well i did it 3 seperate times and it looks like it is giving me 3 seperate codes. 12 - 34 - 44
That's odd, your codes aren't on this list...

Jeep Horizons :: 1991-1995 Jeep Wrangler (YJ) Trouble Codes

but it's on this...

http://www.jedi.com/obiwan/jeep/dtc.html
06-30-2010 03:02 PM
YJoey OT: Where are good spots to wheel around there? Im only a 45min trip from you. Have you been to Disney yet?
06-30-2010 02:20 PM
hannahuffster ok, figured it out with a little online research (didnt know you could do that). Well i did it 3 seperate times and it looks like it is giving me 3 seperate codes. 12 - 34 - 44
06-30-2010 01:57 PM
hannahuffster
Quote:
Originally Posted by flatline View Post
you don't need a code reader for a yj. turn key on three times and leave in the on position, count flashes. the first one should be 12 the last is 55. If you have no power to ecu you shouldn't get any flashes. If you can do this in the next 15 minutes I'll grab my code chart while I'm home. can't remember all those in my head. and I've ohm checked coils and they were still bad when tested good. check by spark. pull off of spark plug and check there, it tells a lot.
where am I looking for the codes?
06-30-2010 01:23 PM
flatline you don't need a code reader for a yj. turn key on three times and leave in the on position, count flashes. the first one should be 12 the last is 55. If you have no power to ecu you shouldn't get any flashes. If you can do this in the next 15 minutes I'll grab my code chart while I'm home. can't remember all those in my head. and I've ohm checked coils and they were still bad when tested good. check by spark. pull off of spark plug and check there, it tells a lot.
06-30-2010 01:02 PM
hannahuffster I dont have a code reader and really cant get the jeep to a shop that would have one. No warning lights ever came on...
06-30-2010 01:01 PM
hannahuffster I have tried to unhook the battery wait a few and hook it back up (several times).

I called a mechanic in town and they told me to check the ECM fuse, but I dont have one [I guess] as I cant find any kind of fuse labeled even close to that.

The computer would cause no ignition spark? I just checked the coil and all the ohms where within spec. Maybe the stator in the dist?

Does anybody know where the fuse for the computer would be should it have one? I have checked both fuse blocks [inside the cab and under the hood]...
06-30-2010 12:33 PM
flatline after hooking everything up did you try pulling codes? should run with o2 disconected but might run real bad. ecu's should have some protection from back feeding so I wouldn't start there. so what if any codes are there.
06-30-2010 12:10 PM
rogertc1 Perhaps Computer. Did you run codes? Perhaps Unhook battery and hook up again after a few minutes.
06-30-2010 10:45 AM
hannahuffster anybody???
06-29-2010 07:19 PM
hannahuffster
Elecrtical problems... At my wits end!

On the trail today & was broke down due to electrical problems. 6 hrs later the jeep is home (thanks to one hell of an guy: Owner of J & D in JOPLIN, MO & a local tow truck company) and I am at my wits end with what the exact problem is.

93 2.5 4 cyl YJ

The speedo and tack went nuts on me for a few seconds and the jeep died. I checked everything: Clean throttle body, fire at the coil, & gas at the fuel rail. After checking all the fuses and relays I noticed the O2 sensor wires had been ripped apart and the jeeps harness destroyed [if the power wire from the o2 sensor was grounded it would have kept the ASD relay from letting the jeep start --right?]. After isolating all the wires, now I am not getting fire from the ignition?!?!

The jeep should run without the O2 sensor hooked up if the wires are isolated, correct?

Everything else electrical seems to be working. Surely it wouldnt have gone back and fried the ECM? Does anybody have any ideas?

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