Collection of V6 Wiring Information

[V6'er]

Originally Posted by Gimpster

This is my personal excel I've made for my swap.

1. Are you using A/C? If so, you should not be removing all of the AC wires at the ECU. (I believe it's Bk/Yel that's used for Idle Up.)

2. STP is used by the MR2, connect it on the 1MZ.

3. Put a switch on the CEL lead. The light will be on all of the time once the ECU throws the EVAP codes.

4. The Tach wire goes up to EA3 in the Relay Block connected to the black Tach wire. You need a tach adapter, a V6 tach, or a V6-modified MR2 tach. (You might have covered this in another sheet.)

Just my opinions...

[Gimpster]

1.) Don't have AC, and don't envision adding it so I removed it from the harness entirely.

2.) Thanks, I'll update my sheet tomorrow.

3.) Thanks again, a good suggestion (unless I can somehow fool the ECU eventually).

4.) I've grafted the 95 Avalon tach into my NT cluster, so I've got that covered.

[tettjetwo]

This topic is helpfull for most V-6 swappers, especially those who spoon a 1MZ in their two.
However there are guys (like myself) who are changing a 5S-FE into a 5VZ-FE.
And there is no scedule altought the plugs of the ECU of both V-6 engines
(1MZ and 5VZ) are thesame. So the only information I need is how to plug the engine harness on to the car and how to plug the ecu on the the car, because color and numbercodes of the harness are different.
my example: 1992 MR2 body/5S engine => 1997 5VZFE (T100 A/T) who has the solution??

John/ Tettjetw

[Jason.MZW20]

Updated 3SGTE Excel chart with 5SFE pinouts. Also added the backup light terminal information for A/T harnesses. I am not the original author of this file (the main 3SGTE version; Credit: Mike King), but for those of you with 5SFEs going to 1MZs this should help you.

Originally Posted by V6'er

2. STP is used by the MR2, connect it on the 1MZ.

I've found that STP is an A/T only signal for the 1MZ. The M/T does not need it. Only the 3SGTE and 5SFE A/T have the connection in the trunk. You can wire it up, but it's not necessary and the ECU likely ignores it anyway. The 5SFE M/T does not have the connection wired at all.

EDIT: fixed a small error in the Excel file regarding the ACT connection. The ACT signal comes from the A/C amplifier, but only on the 5SFE, not the 3SGTE.

[Oteck]

Some life to this thread... Sorry guys i completely forgot i had this. I made this for a customer from Hawaii as i did his harness.

1997 1mzfe Wiring diagram for 5sfe (forgot which year oops)
2000 1mzfe Wiring diagram for the avalon not ready still (lazy to fix it)