YJ to CJ dash swap write up with pictures - Page 6 - JeepForum.com
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BLACK FRIDAY SPECIALS!! You asked, we deliver!Rough Country Lift Kits and Parts!XJ Rail Sale!

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Unread 04-22-2009, 09:42 PM   #76
NVRDUN
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1985 CJ7 
 
Join Date: Apr 2008
Location: CT
Posts: 88
that looks great! Thanks for sharing

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Unread 04-22-2009, 11:38 PM   #77
rrisher
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1987 YJ Wrangler 
 
Join Date: May 2008
Location: Huntington Beach, CA
Posts: 987
I haven't been on here in about a month now as, I've been working out of the country. I'm glad to see all the posts on this thread though. It makes me look back and smile at the work that I've done, especially knowing how it's impacted and inspired others !

Now, I've gotta' catch up on the other threads here!
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Unread 04-25-2009, 11:15 AM   #78
shinerm02
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1993 YJ Wrangler 
 
Join Date: Jun 2008
Location: Jarrettsville, Maryland
Posts: 146
I am putting the 91 speed sensor in and have to change the pigtail from the 2 pin to the 3 pin. I have the wiring diagram for my 93, it is as follows...

VEHICLE SPEED SENSOR
Circuit K7 supplies 8 volts from the Powertrain
Control Module (PCM) to the vehicle speed sensor.
The K7 circuit connects to cavity 7 of the PCM.
Circuit G7 from the vehicle speed sensor provides
an input signal to the PCM. The G7 circuit connects
to cavity 47 of the PCM.
The PCM provides a ground for the vehicle speed
sensor signal (circuit G7) through circuit K4. Circuit
K4 connects to cavity 4 of the PCM.
HELPFUL INFORMATION
Circuit G7 splices to the speedometer, and Daytime
Running Lamp module (DRL).
Circuit K7 splices to supply 8 volts to the camshaft
position sensor and crankshaft position sensor.
Circuit K4 splices to supply ground for the signals
from the following

I don't have the diagram for the 91 year. My question is which wire is not used out of the 3 pin connector?
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Unread 05-12-2009, 08:18 PM   #79
magnumcherokee
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1992 XJ Cherokee 
 
Join Date: Nov 2008
Location: S.E.PA
Posts: 315
Excellent post, thanks rrisher, very sweet looking YJ!!! I can not wait to do this to mine. Has anyone concidered using the YJ speedo and tach in the CJ dash panel?? I have been concidering welding up the CJ dash to use some of the YJ stuff in it, for a more custom look. Any one else thinking this way?
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Unread 05-12-2009, 09:22 PM   #80
93jeepyj
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1993 YJ Wrangler 
 
Join Date: May 2008
Location: windsor locks, CT
Posts: 2,686
you could do that, I'd say youre better off buying a blank dash and putting everything where you want it though. The finished product would be better.
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Unread 05-29-2009, 03:50 PM   #81
Aarzak
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1991 YJ Wrangler 
 
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Location: NYC
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AWESOME!!!!!!!!!! nice job
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Unread 07-23-2009, 01:23 PM   #82
Georgedj
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1995 YJ Wrangler 
 
Join Date: Jul 2009
Location: Netcong, NJ
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Beautiful job
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[SIZE="5"][COLOR="Red"][URL="http://hpmudslingers.myfreeforum.org/index.php"]High Point MudSlingers[/URL][/COLOR][/SIZE]
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Unread 07-25-2009, 06:48 PM   #83
1bad92yj
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1992 YJ Wrangler 
 
Join Date: May 2008
Location: Chattanooga, TN
Posts: 298
Did your gas tank have the rectangle sending unit or the circle one? The cj ones use a circle one but the newer yjs have the rectangle one. How do you put the circle one on the rectangle sending unit tank? Thanks, Cody
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Unread 07-25-2009, 07:58 PM   #84
93jeepyj
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1993 YJ Wrangler 
 
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Location: windsor locks, CT
Posts: 2,686
I cut the sending unit off the circle mounting plate and tack welded it an place of the old one. I'd probably just use screws if I had it to do over though. the units themselves are very similar, you may want to find a way to use the float/arm off the yj unit as the cj unit needs to be modded anyway and even then it doesnt fit through the opening very easily.
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Unread 08-09-2009, 02:32 PM   #85
1bad92yj
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1992 YJ Wrangler 
 
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Quote:
Originally Posted by shinerm02 View Post
I am putting the 91 speed sensor in and have to change the pigtail from the 2 pin to the 3 pin. I have the wiring diagram for my 93, it is as follows...

VEHICLE SPEED SENSOR
Circuit K7 supplies 8 volts from the Powertrain
Control Module (PCM) to the vehicle speed sensor.
The K7 circuit connects to cavity 7 of the PCM.
Circuit G7 from the vehicle speed sensor provides
an input signal to the PCM. The G7 circuit connects
to cavity 47 of the PCM.
The PCM provides a ground for the vehicle speed
sensor signal (circuit G7) through circuit K4. Circuit
K4 connects to cavity 4 of the PCM.
HELPFUL INFORMATION
Circuit G7 splices to the speedometer, and Daytime
Running Lamp module (DRL).
Circuit K7 splices to supply 8 volts to the camshaft
position sensor and crankshaft position sensor.
Circuit K4 splices to supply ground for the signals
from the following

I don't have the diagram for the 91 year. My question is which wire is not used out of the 3 pin connector?
Does anybody know the answer to this question?
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Unread 08-09-2009, 05:40 PM   #86
93jeepyj
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1993 YJ Wrangler 
 
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Location: windsor locks, CT
Posts: 2,686
you need the ground and the feed to the pcm, the wire you wont use anymore is the one which fed the stock speedo which was orange on my 93
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Unread 08-09-2009, 05:50 PM   #87
1bad92yj
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1992 YJ Wrangler 
 
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Ok, thats what I was thinking. I just wanted to be sure because the colors are different on my 92. Thanks for the help though. Also, I did as you did for the fuel sending unit, cutting it off and mounting it but I was wondering where you grounded yours at? I did mine where the fuel pump was but wasn't for sure if thats ok.
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Unread 08-09-2009, 06:39 PM   #88
93jeepyj
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1993 YJ Wrangler 
 
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Im pretty sure I used the same ground as the fuel pump, I think there was a threaded stud or bolt I used. Either way ground is ground. Did you use the yj float rod or mod the cj one? what a pita to get it through the opening, I think I still need to drop the tank and mess with it as mines a bit off and with no trip odo on the cj cluster a gas gauge that lets you know your empty when your empty is a nice feature.
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Unread 08-09-2009, 09:07 PM   #89
1bad92yj
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Location: Chattanooga, TN
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Quote:
Originally Posted by 93jeepyj View Post
Im pretty sure I used the same ground as the fuel pump, I think there was a threaded stud or bolt I used. Either way ground is ground. Did you use the yj float rod or mod the cj one? what a pita to get it through the opening, I think I still need to drop the tank and mess with it as mines a bit off and with no trip odo on the cj cluster a gas gauge that lets you know your empty when your empty is a nice feature.
I used the cj one, i couldnt see a way of using the yj one unless I cut them both off and epoxied them together. I wanted something stronger so I just left the cj on there. I used the fuel pump ground inside the tank and just connected the old sending unit wire to the new cj one. Heres a pic of it mounted, I dont have the wiring hooked up in the pic though. Do you think the cj one would work the way I have it here, I bent the cj float so that it goes up and down to the same levels the old float used to go to.

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Unread 08-09-2009, 09:52 PM   #90
93jeepyj
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Looks good, I used the cj one too and bent it up so it would sit right but I tweaked it gettin it through the opening in the tank and did my best to get it right but working blind with my hand in 10 gals of gas was not the best environment. was the white plastic box the pickup sits in in your tank all deformed too? thats why my yj gas gauge wouldnt go below 1/4 tank. I tried to bent it out of the way but it wasnt having it so I trimmed a bit but that may be whats still giving me trouble. I should drop the tank again im just not looking forward to it at all.
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