ECU conversion 68pin to 121pin wiring help

sinnie92

New member
Joined
Dec 21, 2023
Location
Isle of wight
TDI
98 T4 AHU swapped, gt1749va
Hello there

I'm in desperate need of some help with my conversion and would love to hear from someone who's done this successfully before

I have an AHU motor that I'm in the process of upgrading (pd130 turbo .216 injectors etc) to support this I am swapping my current ECU 028906021GG to the later EDC15 variant 038906012K.

I have began splicing into the loom but I have come to a stop because I have found conflicting information on what terminations to make between old and new

This was the pin map I was working from before I decided to validate via other sources:


I'm at a loss now, I can't finish the wiring because i don't know what pin map is correct

Hope someone can help 🙏
 

2slotdi

Member
Joined
Mar 24, 2024
Location
Ridgecrest California
TDI
98 Jetta TDI (daily)
Here's a thread that has all the pinouts, I don't know if this helps you in your circumstance, but its helped me quite a bit since I started swapping my ECUs too. Hope this helps
Schematics
 
Top