3.0 Body Harness To 3.4 ECM
#1
Registered User
Thread Starter
3.0 Body Harness To 3.4 ECM
Here it goes. I have been lurking the forums for a few years now and I finally worked up the courage to ask a question of my own. My 1992 4Runner 3VZ-E M/T 4x4 is getting swapped for a 1997 5VZ-FE M/T 4x4. I have read lots of threads on this so a confirmation would help a lot more than just a link to another thread. Before I go messing anything up, can someone tell me if I am on track?
Step 1. It is my understanding that the first three ECM plugs (E5'A', E6'B', and E7'C') do not need any modifications. (Not much of a 'Step 1')
Step 2. I will have to reppin the wires of the II3 and the II1 plugs from the '97 to the IH1 and IH2 plugs from the '92.
That seems straight forward enough. What I am not confident about is what to do about that last plug to the ECM (E8'D'). I can scavenge the T2'A' plug but what then? Do I splice the corresponding wires from the IH1 and IH2 plugs that I repinned in 'Step 2' to the plug that I scavenged?
If I do splice the wires can I use 'T Taps'? And should I splice from the body harness side or the engine harness side?
I'll do a dance for anyone who responds to this!
Step 1. It is my understanding that the first three ECM plugs (E5'A', E6'B', and E7'C') do not need any modifications. (Not much of a 'Step 1')
Step 2. I will have to reppin the wires of the II3 and the II1 plugs from the '97 to the IH1 and IH2 plugs from the '92.
That seems straight forward enough. What I am not confident about is what to do about that last plug to the ECM (E8'D'). I can scavenge the T2'A' plug but what then? Do I splice the corresponding wires from the IH1 and IH2 plugs that I repinned in 'Step 2' to the plug that I scavenged?
If I do splice the wires can I use 'T Taps'? And should I splice from the body harness side or the engine harness side?
I'll do a dance for anyone who responds to this!
#2
Registered User
Here it goes. I have been lurking the forums for a few years now and I finally worked up the courage to ask a question of my own. My 1992 4Runner 3VZ-E M/T 4x4 is getting swapped for a 1997 5VZ-FE M/T 4x4. I have read lots of threads on this so a confirmation would help a lot more than just a link to another thread. Before I go messing anything up, can someone tell me if I am on track?
Step 1. It is my understanding that the first three ECM plugs (E5'A', E6'B', and E7'C') do not need any modifications. (Not much of a 'Step 1')
Attachment 93467
Step 1. It is my understanding that the first three ECM plugs (E5'A', E6'B', and E7'C') do not need any modifications. (Not much of a 'Step 1')
Attachment 93467
My donor was a 97 A/T 4Runner that I converted to M/T, so I did have to re-pin those, you do not.
Step 2. I will have to reppin the wires of the II3 and the II1 plugs from the '97 to the IH1 and IH2 plugs from the '92.
Attachment 93468
That seems straight forward enough. What I am not confident about is what to do about that last plug to the ECM (E8'D'). I can scavenge the T2'A' plug but what then? Do I splice the corresponding wires from the IH1 and IH2 plugs that I repinned in 'Step 2' to the plug that I scavenged?
Attachment 93474
Attachment 93468
That seems straight forward enough. What I am not confident about is what to do about that last plug to the ECM (E8'D'). I can scavenge the T2'A' plug but what then? Do I splice the corresponding wires from the IH1 and IH2 plugs that I repinned in 'Step 2' to the plug that I scavenged?
Attachment 93474
I made a "conversion harness" using the dash side connectors for II1 and II3 from my donor's dash harness, the engine side connectors for IH1 and IH2 from my 3.0 engine harness, and also wired in the 4th ECU connector (E8 'D') since it is responsible for providing all the connections to/from the dash harness.
You promise?
Thread
Thread Starter
Forum
Replies
Last Post
XtraCab
Solid Axle Swaps, All Years
18
04-12-2020 05:25 AM