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Unread 04-20-2013, 12:37 PM   #1
Prspallone
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1982 CJ7 
 
Join Date: Oct 2011
Location: elgin, Illinois
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Code 24 and 25- 1995 not starting

Hi everyone, today I drove my 1995 yj and had no problems. I just went outside to bring it in and it wont start. Lights, heat, ect. will start but it wont turn over. Ran the codes and I'm getting 12, 33, 24, 25. I know I don't have to worry about 12 and 33 but does anyone have any idea what I need to do? Thanks!

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Unread 04-20-2013, 01:34 PM   #2
Prspallone
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Anybody?
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Unread 04-20-2013, 03:02 PM   #3
Que89YJ
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1989 YJ Wrangler 
 
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Location: Detroit, Michigan
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24 & 25 are the throttle position sensor and the idle air control. Disconnect both reset your battery and see if it will start.
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Unread 04-20-2013, 04:34 PM   #4
Prspallone
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do you think this would cause it not to start?
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Unread 04-20-2013, 04:40 PM   #5
Que89YJ
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1989 YJ Wrangler 
 
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Normally no, but it is not normal to have 2 sensor codes set at the same time. If a sensor sorts, while I am thinking about it try disconnecting the map sensor first and try it.
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Unread 04-20-2013, 09:46 PM   #6
TSEJEEPERS
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1993 YJ Wrangler 
 
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How old is your battery?
Have you tried jumping it?
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93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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Unread 04-22-2013, 03:36 PM   #7
Prspallone
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Battery is new. I put in a new starter but still nothing. Temporarily I have a sort of push start button connected to the starter to bypass the ignition, but without that the key won't crank it. Also I have noticed my turn signal fuses keep blowing... Short?
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Unread 04-22-2013, 04:06 PM   #8
idaholtby
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1991 YJ Wrangler 
 
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Quote:
Originally Posted by Prspallone View Post
Battery is new. I put in a new starter but still nothing. Temporarily I have a sort of push start button connected to the starter to bypass the ignition, but without that the key won't crank it. Also I have noticed my turn signal fuses keep blowing... Short?
You likely have two different issues as I cannot see the 15A fuse (f4) blowing for the turn signals and that in any way being related to your other issue. However I am concerned that you have more than one sensor reporting back with codes (the other issue). Most all these sensors share a common power source. The most likely wire short that I can think of is the O2 sensor on the front down exhaust pipe from the exhaust manifold. Check this first as it is somewhat common to have the wiring come loose for the O2 sensor and either get entangled in the front drive shaft or melt against the exhaust. Let's troubleshoot your sensors (run ability issues) first, then move on to the turn signals if they still are present.
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Unread 04-22-2013, 04:54 PM   #9
Prspallone
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Also I disconnected the cables and have driven it around and I checked the codes and I'm only getting 12, 24, 33, 55 now. I don't know why 25 is gone... The O2 sensor doesn't look harmed, at least from a visual perspective.
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Unread 04-22-2013, 04:58 PM   #10
Prspallone
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clarification- I disconnected the battery cables and put them back on.
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Unread 04-22-2013, 05:35 PM   #11
idaholtby
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Quote:
Originally Posted by Prspallone View Post
Also I disconnected the cables and have driven it around and I checked the codes and I'm only getting 12, 24, 33, 55 now. I don't know why 25 is gone... The O2 sensor doesn't look harmed, at least from a visual perspective.
Not so much the sensor, but the concern lies as to it's wiring as it leads up to the top of the engine. I am not saying this is the cause, just that this is a common issue with these rigs that should be ruled out, especially when there are multiple sensors throwing codes. Same could be said for the Crank Position Sensor wiring.
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Unread 04-23-2013, 01:55 PM   #12
Prspallone
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my under dash harness looks like a rat nest from the PO, I ordered a "new" one (no splices) and I'm going to replace it. Maybe that will do something, otherwise at least I don't have wires hanging down...
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Unread 04-24-2013, 09:30 AM   #13
idaholtby
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Quote:
Originally Posted by Prspallone View Post
my under dash harness looks like a rat nest from the PO, I ordered a "new" one (no splices) and I'm going to replace it. Maybe that will do something, otherwise at least I don't have wires hanging down...
My concern lies with the engine bay wiring. If you can't see any visual issues, then if you are handy with a meter, myself or others can help with checking some things out.
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Unread 04-24-2013, 10:11 AM   #14
Speedymcracer01
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Quote:
Originally Posted by idaholtby View Post

My concern lies with the engine bay wiring. If you can't see any visual issues, then if you are handy with a meter, myself or others can help with checking some things out.
The last time a had a short it never stalled the jeep my tranny would kick and lose drive one night it died didnt crank back up for three days i had nothing no obd2 no nothing only thing it would do was turn the lights on and turn the engine the fuel pump would not prime it stayed on until i turned the key off my o2 sensor wires where exposed from rubbing the drive shaft it was shorting out the pcm causing the tranny to kick until it rapped around the drive shaft that poped the pcm fuse in the pdc and killed it the only reason i didnt go get a new pcm i decided to pull the pcm took it apart and tested all the circuits awhile later come to find the pcm was fine which lead me on a day and a half
of following wires from the pdc to the pcm and there to where ever the wire ended after hours of wiring diagrams and the curcuit testing later i found the emissions o2 sensor saw the wires tapped it up poped another fuse in and its ran fine since then the cps will do the same it will kill power to the distributer and it can make gauges malfuntion so the parts store said...i got that before i did all the work so it has a new cps that it didnt need and one more thing models around that year and older have been known for the pcm harnesses becoming worn and loose they will stall out some times when taking turns or when you hit a bump. it will crank back and sometimes it doesn't.wiggle the pcm harnesses when its trying to crank but will not start my 89 wouldnt crank sometimes unless i hit the purge valve on the fuel rail also let you know if i think of anything else
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Unread 04-24-2013, 02:14 PM   #15
Prspallone
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Would you really say the engine bay wiring? My gut is telling me it has something to do with that spaghetti under my dash. Can I ask what makes you think it would be in the engine bay? Also is there anything else from a diagnostic perspective I could tell you to give you a better idea? I am still running with a push button attached to my starter to bypass the ignition switch.
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