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Unread 06-24-2015, 09:13 PM   #1
MondayWarriorZJ
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Join Date: May 2015
Posts: 4
94 zj swapped with aw4

Just swapped out a 42re with an aw4 out of a 93 zj. Pretty simple as far as the wiring goes. Everything plugs into place and should work since its out of a zj. Jeep ran fine before the swap but the only problem now is the fuel pump won't get power. Didn't think any wiring that we swapped had to do with the fuel pump. I know it works since I hooked it 12v and it turned on. The only difference between the 93 and 94 wiring to the fuel pump is an extra purple/white wire. Don't have any clue what it does. Hopefully someone has some info on this! Thanks!

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Unread 06-25-2015, 01:33 AM   #2
smokeyeager
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1993 ZJ 
 
Join Date: Aug 2010
Location: Wilmington, North Carolina
Posts: 223
Does it turn over at all? I know they have a different NSS and while the connectors might be the same the pins might be different so the PCM might not be getting the right signal. I bypassed the NSS on my 93 AW4 a few years back so I'm not even sure which wire was what.
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