wire harness?
10-04-2009, 08:37 AM
#1
Registered User
Thread Starter
Join Date: Feb 2009
Location: British Columbia
Posts: 262
Likes: 0
Received 0 Likes
on
0 Posts
wire harness?
bought myself a 3.4 to swap my 3.0 got the 3.4 m/t ecu wondering if i can make a auto wire harness work? been researching the site with no definitive answers... anyone know?
10-04-2009, 08:59 PM
#3
Registered User
Join Date: Apr 2009
Location: Green River, Wyoming
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
what type of trans are you going with behind the 3.4 after its installed? If its a manual with a manual ecu with a auto harness then i think that you could make it work. i beleive that the a/t harness has more wires sense the computer has more to monitor but if you can sort out these wires then you may be set.
now if its the a/t behind the 3.4 with the a/t harness and a m/t ecu then it will not work.
again im not for certain so do not qoute me. but it sounds logical to me.
now if its the a/t behind the 3.4 with the a/t harness and a m/t ecu then it will not work.
again im not for certain so do not qoute me. but it sounds logical to me.
10-04-2009, 09:13 PM
#4
Registered User
Join Date: Mar 2008
Location: Chico, California
Posts: 3,870
Likes: 0
Received 0 Likes
on
0 Posts
Yes you can make it work..
My truck was originally a 3.0L, 5-speed.
Donor motor was a 99 tacoma auto.
I used everythign from the donor and made it work with the auto ecu and harness.
So to answer your question, YES you can make it work, just takes a bit of time and research..
I just jumped the park/neutral saftey switch to make the ecu think it is in neutral the whole time..
Runs fine!
My truck was originally a 3.0L, 5-speed.
Donor motor was a 99 tacoma auto.
I used everythign from the donor and made it work with the auto ecu and harness.
So to answer your question, YES you can make it work, just takes a bit of time and research..
I just jumped the park/neutral saftey switch to make the ecu think it is in neutral the whole time..
Runs fine!
Last edited by 904_runner; 10-04-2009 at 09:14 PM.
10-04-2009, 11:01 PM
#5
Registered User
Thread Starter
Join Date: Feb 2009
Location: British Columbia
Posts: 262
Likes: 0
Received 0 Likes
on
0 Posts
its a 90 3.0 5spd swap with a 99 3.4 5spd (not complete) but i also scored a complete but disassembled 97 3.4 auto. so my plan is to use the 99 5spd since it is newer has less km and mostly since its assembled. i want to use the 97 for parts, mostly the exhaust and wiring harness on the 99. follow? i wasnt able to get the ecu i wanted so no i have the option open to get either. so which would work better? the 97 a/t or the 99 m/t?
10-06-2009, 04:21 PM
#7
Registered User
Thread Starter
Join Date: Feb 2009
Location: British Columbia
Posts: 262
Likes: 0
Received 0 Likes
on
0 Posts
the 99 didnt have a alt, p/s, wire harness, ecu...
but what i meant is what ECU will work best with 99 m/t engine and 97 a/t wire harness?
i want to keep my swap as cheap as possible so lil bit of extra work is no issue.
but what i meant is what ECU will work best with 99 m/t engine and 97 a/t wire harness?
i want to keep my swap as cheap as possible so lil bit of extra work is no issue.
Trending Topics
10-06-2009, 04:59 PM
#8
Registered User
Join Date: Apr 2009
Location: British Columbia
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
I think you'll end up wanting to use the ecu out of a 97 m/t. I did mine with the 3.4 and harness from a 98 a/t 4runner but used the ecu from a 98 m/t tacoma. everything works fine. it's a bit of a pain to wire up the back-up lights, 4wd sensor but your speedo should still be a cable. I just cut all the plugs off for the a/t and grafted on the plugs for a 3.0 m/t and made everything line up at the jumper.
Good Luck
Good Luck
Last edited by Jody; 10-06-2009 at 05:05 PM.
Thread
Thread Starter
Forum
Replies
Last Post
