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Author Topic: AW4 Swap, NSS Issue  (Read 1572 times)

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Offline AV.NINE

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AW4 Swap, NSS Issue
« on: July 17, 2011, 09:55:10 PM »
Im 95% done my aw4 swap (from my 2002 with an nv3550).

Everything is bolted up, been splicing wires and sodering all day. Trans cooler, etc.

My problem is, I need a way to bypass the neutral safety switch that would have been on my old transmission harness.

A little back ground into this. My tranny is a stand alone aw4. Im not tying it in to my ECM what-so-ever. I have button shifters to raise and lower gears and the old XJ shifter as well.

Im not looking for opinions on the swap or the fact that my Drive gear should work with my ecm.

I really just need to know which of the 6 wires to ground out on the old tranny harness or from the fuse block as to avoid having to put in a push button start.

Thanks guys!

Edit: Should mention that I turn the key and the ignition relay clicks and the starter doesn't engage or the starter relay wont click. And I can't read schematics to save my life.....

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Offline TL-Iguana

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Re: AW4 Swap, NSS Issue
« Reply #1 on: July 17, 2011, 10:49:31 PM »
This may help ya Justin.

Not sure if it matches your year of tranny, but Id think they were all somewhat similar.

http://xj.cdevco.net/auto/nss/

Before cutting and splicing Id suggest you try jumping those pins to see if it works :) No point in hacking it, soldering it all back together to find out its wrong.. Doh!
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I did a Google search for "hot trannies" but nothing came up about oil coolers  :o

Worrying too much about mpg with a Jeep is similar to worrying about your sister's virginity. An ok thing to be concerned about but...

'01 XJ on 35s, '11 Jk DD

Offline AV.NINE

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Re: AW4 Swap, NSS Issue
« Reply #2 on: July 18, 2011, 05:13:14 AM »
Quote from: TL-Iguana on July 17, 2011, 10:49:31 PM
This may help ya Justin.

Not sure if it matches your year of tranny, but Id think they were all somewhat similar.

http://xj.cdevco.net/auto/nss/

Before cutting and splicing Id suggest you try jumping those pins to see if it works :) No point in hacking it, soldering it all back together to find out its wrong.. Doh!

Thanks bud! That should work!!
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Offline AV.NINE

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Re: AW4 Swap, NSS Issue
« Reply #3 on: July 18, 2011, 04:28:59 PM »
Having thought about that, that harness if off the XJ. I need a schematic from a manual Tj to compare. Any leads to that?
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Offline IgniteTJ

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Re: AW4 Swap, NSS Issue
« Reply #4 on: July 18, 2011, 04:54:08 PM »
What year?  I don't know if they are all the same but I could probably bug my dad to get them for me off all-data tomorrow
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1998 Dodge Ram Reg Cab Short Box, lift and 35's going on it over the winter along with 4:10's

Offline AV.NINE

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Re: AW4 Swap, NSS Issue
« Reply #5 on: July 18, 2011, 05:38:18 PM »
Quote from: IgniteTJ on July 18, 2011, 04:54:08 PM
What year?  I don't know if they are all the same but I could probably bug my dad to get them for me off all-data tomorrow

2002 Tj 4.0 originally nv3550

Thanks man.
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Offline IgniteTJ

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Re: AW4 Swap, NSS Issue
« Reply #6 on: July 18, 2011, 05:46:28 PM »
I'll head up to the shop in the morning and see if I can get a printout of them  ;D
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1998 Dodge Ram Reg Cab Short Box, lift and 35's going on it over the winter along with 4:10's

Offline IgniteTJ

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Re: AW4 Swap, NSS Issue
« Reply #7 on: July 19, 2011, 08:53:43 PM »
I got busy with work today and wasn't able to make it up there before they closed sorry AV.. (the old man is such a stickler to get out of there at 5 nowadays haha)
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1998 Dodge Ram Reg Cab Short Box, lift and 35's going on it over the winter along with 4:10's

Offline AV.NINE

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Re: AW4 Swap, NSS Issue
« Reply #8 on: July 19, 2011, 09:28:02 PM »
Quote from: IgniteTJ on July 19, 2011, 08:53:43 PM
I got busy with work today and wasn't able to make it up there before they closed sorry AV.. (the old man is such a stickler to get out of there at 5 nowadays haha)

No worries, I found the solution. For anyone else ever needing a bypass for the NSS, On the TJ's factory transmission harness (the one that plugs into the tranny), there is a BROWN wire with a BLUE stripe. If you ground it out you bypass the NSS.


Side note. My tranny is not connected to my ecm what-so-ever. Do I need the kick down cable attached?
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Offline JackstandJohnny

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Re: AW4 Swap, NSS Issue
« Reply #9 on: July 19, 2011, 10:02:49 PM »
so its running?

good to hear!
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~ rescue green JKUR on 35s.  typical rubicon build
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