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Unread 04-09-2010, 08:10 PM   #1
tilemike
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1993 YJ Wrangler 
 
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93 2.5

today i was driving down the road , all of a sudden jeep loses power and check engine light is on .engine turns over but wont start ,any ideas

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Unread 04-09-2010, 08:16 PM   #2
Roadyy
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Can you tell if you are getting fuel to the engine?
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Unread 04-09-2010, 08:20 PM   #3
Roadyy
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check the pressure at the fuel rail. run the code check and see what codes come up, this will give you some idea where to look. If you haven't gotten one yet, buy repair manual to follow thru the codes with. Post up what you find.
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Unread 04-09-2010, 08:30 PM   #4
tilemike
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getting fuel after reading some other posts sounds like crankshaft pos sensor
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Unread 04-09-2010, 08:34 PM   #5
Roadyy
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The code will tell all. Hope you get back up and going soon.
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Unread 04-09-2010, 08:39 PM   #6
provinT13
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Run the codes, this link tells how

OBDI Error/Check Engine Codes - JeepForum.com Community Jeep Wiki

Tell us what codes you get, then we can actually help you.
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Unread 04-09-2010, 10:14 PM   #7
tilemike
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i did the thing where you turn the key switch on off on off on and my check engine lite never started flashing
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Unread 04-10-2010, 05:09 AM   #8
Mark05059
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did the check engine light come on at all when you were trying to get the codes?

You have to be quick when you do the sequence.
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Unread 04-10-2010, 05:57 AM   #9
Roadyy
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^^x2 You have to switch on-off within 5 seconds, then wait. The cel will stay lit for a few secs then go out, few more seconds then the blinking starts. I did it like 4 times before I finally gave it time to start blinking..
OkOk I'm a slow learner. But atleast I got it without asking.
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Unread 04-11-2010, 02:33 PM   #10
tilemike
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ok did the key witch thing several times check engine light stays on
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Unread 04-11-2010, 03:03 PM   #11
Mr.B
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You're probably not doing it right. Where in California are you?
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Unread 04-11-2010, 03:06 PM   #12
tilemike
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im in lathrop just south of stockton ca
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Unread 04-11-2010, 07:03 PM   #13
Mr.B
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Quote:
Originally Posted by tilemike View Post
im in lathrop just south of stockton ca
Well that's a little too far for me drive down and take a look, but try to get the codes again. the instructions are a little misleading.

This will be going into the YJ faqs sticky topic for your convenience.
This topic ONLY applies to 91-95 YJ's.

Self-diagnostic codes can be obtained from your 91-95 YJ by simply inserting the key into the ignition. Turn the key to the on position (when the lights on the dash come on) then off, on, off, and on. It has been said that you need to go through key cycle in less than 5 seconds.
Now that you have cycled the key on, off, on, off, on, the check engine light will begin to flash. One flash a short pause and two flashes indicates a code 12, three flashes, a short pause, and three flashes indicate a code 33. There will longer pauses between codes when there are multiple fault codes.
If your check engine light will not come on it's fairly common that it's because the bulb is burned out. In that case just remove the guage cluster and replace the CEL bulb with the bulb for the seatbelt reminder.

When you determine what codes are stored in the computer you must disconnect the battery for a minute or so after you have completed the repair so that the code will be erased from the computers memory. If you don't do it the motor will still run badly because the computer will still think there is a problem even though the check engine light is not on.
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White '94 YJ 2.5L 5 speed, 35" BFGs KM2's, 5" lift, Mark VII 2 speed fan, Milemarker PE8000, Front Aussie Locker, Power steering conversion, '98 Cavalier seats, MORE Boomerangs in front, 136 amp ZJ alternator, JB conversions SYE, Tom Woods custom drive shaft, 8.8 with ARB, 4.88 gear ratio, Teralow

My Jeep

'89 XJ Laredo Bone Stock

Member:The Wrecking Crew

Ham license:
KB6(tooeasytosearch)

Everyone is Welcome
www.rubiconramblers.com

Quote:
Originally Posted by Major Sanderson
You have no respect for excessive authority or obsolete traditions. You're dangerous and depraved, and you ought to be taken outside and shot!
Quote:
Originally Posted by Beefstew
I may have proven that I am in fact an idiot, by all of your standards...
Quote:
Originally Posted by ritjobbie View Post
Mr.B's post gets you as close to Buddha as you can get on JF...
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Unread 04-12-2010, 08:15 PM   #14
tilemike
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did all that still no codes could this be a bad cam position sensor
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Unread 04-12-2010, 10:04 PM   #15
Mr.B
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Maybe you fried the computer. I fried the CPS once and got the same symptoms, but I also got codes.
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White '94 YJ 2.5L 5 speed, 35" BFGs KM2's, 5" lift, Mark VII 2 speed fan, Milemarker PE8000, Front Aussie Locker, Power steering conversion, '98 Cavalier seats, MORE Boomerangs in front, 136 amp ZJ alternator, JB conversions SYE, Tom Woods custom drive shaft, 8.8 with ARB, 4.88 gear ratio, Teralow

My Jeep

'89 XJ Laredo Bone Stock

Member:The Wrecking Crew

Ham license:
KB6(tooeasytosearch)

Everyone is Welcome
www.rubiconramblers.com

Quote:
Originally Posted by Major Sanderson
You have no respect for excessive authority or obsolete traditions. You're dangerous and depraved, and you ought to be taken outside and shot!
Quote:
Originally Posted by Beefstew
I may have proven that I am in fact an idiot, by all of your standards...
Quote:
Originally Posted by ritjobbie View Post
Mr.B's post gets you as close to Buddha as you can get on JF...
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