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Unread 05-04-2011, 11:06 AM   #1
93_wrangler
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1993 YJ Wrangler 
 
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My friend has a 94 wrangler with the 4 cyl in it and needs a computer. Does he need a computer from a 94 or will another one from a different year work?

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Unread 05-04-2011, 02:17 PM   #2
Leans93
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I have a 93' and my computer is from a 91' and it works just fine. 25,000 miles now with that set-up. It does need to be from another 4 cylinder though.
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Unread 05-04-2011, 02:20 PM   #3
TheNewbie
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I'm not sure which year the cutoff was, but some of the earlier fuel injected YJ's were TBI, and the later ones were MPI. I would guess you would just need to find a computer from one with the same type of injection system.

But maybe they were all interchangeable like Leans said. But I'd look into that since I could see there being a big difference between a computer controlling 1 injector and controlling 4.
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Unread 05-04-2011, 02:25 PM   #4
Leans93
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1993 YJ Wrangler 
 
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Yes 91-95 4.0L all use the same style of computer and same injection system. He would need to get the same style of computer also nfor his 2.5L. I am not 100% on the years of the 2.5L injection types either. I know that 93-95 are MPI but not sure of the one's before that.
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93' YJ 4.0L AX-15, 4" Pro Comp lift, 3/4" shackles, 1" BL, 33x12.5x15 BGF MT's, and some other stuff


Quote:
Originally Posted by Mike Jones
Catch me on the highway or about to tear the mall up.
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Unread 05-04-2011, 02:37 PM   #5
Destr0
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Hey I happen to have two spare 2.5 YJ computers so if you are looking for one hit me up with a PM. I was having O2 sensor issues so I bought one off of CL. Then a week later my my buddy put in a 5.2 in his 2.5 so I got his computer. It turns out my O2 sensor woes were in the harness itself (swapped computers and problems did not go away, but PCMs known good as my 94 2.5 runs fine on all three!).
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Unread 05-04-2011, 06:24 PM   #6
dodger889
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Any 2.5 with mpi system will work including the XJ's trans has nothing to do with the ECM. this widens your field up a lot for tinding one.
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Unread 05-04-2011, 08:15 PM   #7
93_wrangler
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Thanks everybody for the help. It made it alot easier to find one since it didn't have to be the same year.
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