3.4L to 3.6L SWAP

[mr_Brink]

Hi all! I am in the process of doing an engine swap in my 2000 996. The 3.4L engine went to heaven, and I decided to put in a 2002 3.6L with 12K, by using the 7.8DME. I will post my progress here on the board.

Currently, I have received the 3.6L engine, the 2002+ instrument cluster, a middle chassis wiring harness from a 2003 4S, and a 7.8 DME originating from a 2003 boxster. From reading Tholyoaks' posts, I learned that I will also need the HVAC controller and a different ABS unit.

Next week the mechanical part of the swap will be done by a workshop.

Right now, I am trying to get 2002 instrument cluster to fit the old wiring harness. First thing I have done is to compare the wires of the old connectors to '99 schematics, in order to find out what function each wire has. The majority of the wires in the diagram match my 2000 harness, however a few do not. Does anyone know where I can get schematics for the 2000 instrument cluster (and for the 2002 cluster later on) ? Or does anyone know what function the following wires have in a 2000 996:

Blue connector I:

Pin 12 I found a green and black wire, but not in diagram.

Pin 25 I found a black and white wire, but not in diagram.

Pin 26 diagram shows a blue wire "signal engine run", but mine is empty.

White connector II:

Pin 9 brown and grey wire, but not in diagram.

Pin 10 red and green wire, but not in diagram.

Pin 11 I found a green and black wire, but not in diagram.

Pin 26: my harness has a green and grey wire, which is not shown in the diagram.

Edited September 24, 2009 by mr_Brink

[Dharn55]

If you get a set of manuals they have complete wiring diagrams in them.