I would need Wiring diagram for my LS3 engine. Iīm going to make custom wiring harness to aftermarket ECU and that would help progress of that project with sensors etc.

Local GM dealers here in (Finland) arenīt very usefull in this matter...

 

PM your E mail adress to me, I will send it to you.

 

Sorry, Mikko, I do not have the LS3 diagrams, I assumed I did. Sent you a PM.

Hopefully someone can send it to you.

 

Let me know what you need. I can send you screen shots of wiring diagrams from Shop Key, but I would need to know the exact area you are working with, because only so much of the diagram will fit on the screen at once.

 

I need the:

Crank
Cam
DBW TB
DBW Pedal

pinouts at the sensors. I've been searching for weeks. Please, any help is appreciated.

 

Here are a couple of resources:
http://cjnn.xtremefabricator.com/lsx...sSchematic.JPG

http://www.lt1swap.com/E38%20ECM%20C...%20Pinouts.htm

 

Prolly too late for Mikko, but for those that don't know, you can go to Autozone and register. This allows you to plug in your vehicle make, model, and year and get any wiring diagrams (or assembly guides) you may need...