What does a 4.0 need to run?

Safari Ary · Oct 4, 2005

Let's say for arguments sake I wanted to put a 4.0/Aw4/D300 into a vehicle that was not originally designed for this motor. What, in terms of electronics/sensors/computers/etc, is needed to make the 4.0 run properly. I would be running Brett's shifter conversion to make the AW4 completely manual, thereby eliminating the TCM. Also what years would be best for making this swap the simplest?

This is just one of a few hypotheticals I'm working on now, but it's definately a possibility depending on how hard the swap would be electrically speaking.

Thanks guys, and it's good to return to my roots of sorts(first time I've been on this forum in months).

Ary

XJ_ranger · Oct 4, 2005

battery

sensors, complete wiring harness

id say pull EVERY wire attached to the motor, transplant, re-mount, and call it good?

HaleYes · Oct 4, 2005

Safari Ary said:
What does a 4.0 need to run?

Spark
Air
Fuel

:wave:

Safari Ary · Oct 4, 2005

Oh man, I forgot to bring my love of sarcasm with me. I better go get it before this thread gets much longer

JJacobs · Oct 4, 2005

I think it's about 4 wires to the factory pcm. Constant power, switched power, ground, ignition. Not a whole lot really.

uvaldetxj · Oct 4, 2005

I wonder if the 4.0/aw4/np231 could be fit onto a samurai. I'd love that.

BrettM · Oct 4, 2005

uvaldetxj said:
I wonder if the 4.0/aw4/np231 could be fit onto a samurai. I'd love that.

better extend the wheelbase 2 feet

summitlt · Oct 4, 2005

Haleyes said:
Spark
Air
Fuel

:wave:

and compression
and correct timing

ECKSJAY · Oct 4, 2005

summitlt said:
and compression
and correct timing

Those are sub-categories of the basic 3.

tealcherokee · Oct 4, 2005

if you want to get technical, the basic 3 are
spark
fuel
compression

air is part of fuel, timing is part of spark

WipesOutStains · Oct 4, 2005

you don't need any of that other shit as long as your chakras are lined up.

MrShoeBoy · Oct 4, 2005

Ary, Just buy a Jeep and put your Toy axles under it. That way the 4.0L will run and the "frame" will be in better condition than the heep you have

AARON

muduck18 · Oct 4, 2005

Safari Ary said:
Let's say for arguments sake I wanted to put a 4.0/Aw4/D300 into a vehicle that was not originally designed for this motor. What, in terms of electronics/sensors/computers/etc, is needed to make the 4.0 run properly. I would be running Brett's shifter conversion to make the AW4 completely manual, thereby eliminating the TCM. Also what years would be best for making this swap the simplest?

This is just one of a few hypotheticals I'm working on now, but it's definately a possibility depending on how hard the swap would be electrically speaking.

Thanks guys, and it's good to return to my roots of sorts(first time I've been on this forum in months).

Ary

I don't think it would be a hard swap. you will obviosly need all the sensors and the ECM, but that is somthing you might be able to play with, the ecm controls the timing, fuel mixture... etc, some sensors you might be able to nix depending on the application, but for getting it setup i would take everything and get it running in what ever you are putting it in first, then mess with what you need, ( so don't forget the o2 sensors in the exhaust.) the rest should be fairly easy.

The best year XJ to steel it from? hmm most are so alike its hard to tell, personally, i would probebly either get one out of an 85 or a 99. the 85 is morelikely to run without the sensors and extra crap, and the 99 (98+ i think) has a better intake manifold with slightly more power potential.

good luck, and if you get done we want pictures.

old_man · Oct 4, 2005

Jeep didn't have the 4.0L in 85. Any of the Renix units will be easy to use. Just get the harness and shorten it up where needed. Plenty of wiring diagrams and it works well.

Safari Ary · Oct 4, 2005

Another question. Does the ECM in an XJ equipped w/ an auto need input from the TCM to function properly?

Roxtar · Oct 4, 2005

Safari Ary said:
Oh man, I forgot to bring my love of sarcasm with me. I better go get it before this thread gets much longer

Careful, you're coming off as "cocky", or maybe just excited.

Safari Ary · Oct 4, 2005

kid4lyf said:
Careful, you're coming off as "cocky", or maybe just excited.

ROFLMAO....and I was worried you guys might not remember me very well.

CRASH · Oct 4, 2005

Wow, long lost Ary has returned.

The 97-99 wiring is miles ahead of anything previous.

The Renix rigs were wired by engineers who had a bunch of surplus wiring on their hands and needed something to do with it. There are about 15 wires that travel 12 feet in order to connect to a part that is 6 inches away.

Fawking AMC geniuses.

muduck18 · Oct 4, 2005

old_man said:
Jeep didn't have the 4.0L in 85. Any of the Renix units will be easy to use. Just get the harness and shorten it up where needed. Plenty of wiring diagrams and it works well.

OOPs i knew that. I meant 87. :wstupid: :anon:

What does a 4.0 need to run?

Safari Ary

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XJ_ranger

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Safari Ary

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ECKSJAY

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