ECU SWAP from 3S-FE to 1G-FE?

SENGA

MEMBER
2000 TOYOTA RAV4
2.0L
4 CYL
4WD
AUTOMATIC
250,000 MILES

I need a wiring diagram to swap ECU 3S-FE into 1G-FE. Please help with all the information you have on that topic.

Wednesday, September 28th, 2022 AT 1:55 AM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,968 POSTS

Yep, here are the engine and PCM wiring diagrams you have requested in the images below. Also, I have included a guide on how to check the wiring connections.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know if you need anything else to get the problem fixed.

Images (Click to make bigger)

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Wednesday, September 28th, 2022 AT 5:40 PM

SENGA

MEMBER
25 POSTS

The images can't help. I need to Perform a standalone swap from 3S-FE ECU in ECU into 1G-FE A/T. Meaning that I have 3S-FE Noah engine and I want to connect it to 1G-FE A/T ECU. I need how to perform a swap.

Was this

answer

helpful?

Yes

No

Thursday, September 29th, 2022 AT 12:30 AM

KEN L

MASTER CERTIFIED MECHANIC
42,968 POSTS

Which car did this combination come in? I can look it up that way.

Was this

answer

helpful?

Yes

No

Thursday, September 29th, 2022 AT 1:33 PM

SENGA

MEMBER
25 POSTS

The problem is that I have an engine of 3s-fe ECU but the transmission is 1g-fe a/t. Ecu. I have 2 ECU. One for engine 3s-fe and on for transmission 1g-fe a/t. I need only transmission wiring diagram for 1g-fe a/t ECU.

Was this

answer

helpful?

Yes

No

Wednesday, October 5th, 2022 AT 6:45 AM

KEN L