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nein-reis
02-05-2014, 09:56 PM
I have a AEB engine harness I need to modify for a engine swap project, but the donor harness I have has been cut in a few places. I need your help identifying the missing plugs to see if I need to repair them or if I can go without them and move on.

First missing ends are near the end of the harness tree just before al the plugs around the MAF:
Purple wire and red/green.

http://i198.photobucket.com/albums/aa117/Tylerdavis07/P1012689.jpg


Second is further up the harness tree and branches off into two sections:
Has a lot of wires in it.

http://i198.photobucket.com/albums/aa117/Tylerdavis07/P1012692.jpg

Thanks for any help on this B5 guys. I need to identify what is missing before I can unravel this harness and modify it.

AudiTurbo
02-06-2014, 05:08 AM
That looks like the same place mine is cutting that I'm trying to sell. Some are saying it was cut at the MAF sensor, Power Output Stage, N80 EVAP Purge Control valve, and N75 Charge Pressure Control Solenoid Valve. The cut is located roughly at the firewall location, halfway in between the valve cover and the air-box. 'ish
http://i.imgur.com/7QePUYv.jpg

Mad Cow
02-06-2014, 06:37 AM
https://dl.dropboxusercontent.com/u/63667361/AEB.pdf

Have a look through this and try to find those wire colours, it'll take some time but you'll be 100% certain which plug goes where. I'm looking at my ATW harness right now and I can't find anything that's around the area of the first picture, but I think your second picture shows the cut at where the harness goes under the intake manifold to the 3 solenoids, IAT sensor and throttle body.

nein-reis
02-06-2014, 08:12 AM
Thanks Madcow,

The first wire photo is the N80 purge valve. Don't need that anyway.

The second however is too big ones, the 7 pin is the throttle body and the second 2 pin is the IAT sensor. Darn, thats a problem.

Mad Cow
02-06-2014, 11:11 AM
If I were in that situation (and I have been) I would look for a good connector at a junkyard. The IAT sensor is just a standard square 2-pin like the injector plugs and such so it would be easy to find. The TB connector is a D-shaped 8 pin, I'm pretty sure it's identical throughout more or less the whole VAG lineup from the mid-late 90's and early-mid 00's so shouldn't be difficult either.

AudiTurbo
02-06-2014, 11:17 AM
Can you spot my problem? Thanks again for the diagram

Mad Cow
02-06-2014, 11:27 AM
Can you spot my problem? Thanks again for the diagram

I think you were right on the money in your last post, that's the section of the harness that goes to the airbox area. In your case it would probably be easier to cut that whole section off another harness, doing every plug individually would be a massive pain and probably turn out terrible.

nein-reis
02-06-2014, 11:29 AM
If I were in that situation (and I have been) I would look for a good connector at a junkyard. The IAT sensor is just a standard square 2-pin like the injector plugs and such so it would be easy to find. The TB connector is a D-shaped 8 pin, I'm pretty sure it's identical throughout more or less the whole VAG lineup from the mid-late 90's and early-mid 00's so shouldn't be difficult either.

Exactly, same connectors can be found on any harness from MKIII ABA forward. Just more soldering and wiring harness building. I'm swapping a AEB engine into a 84' MK1 GTI, majority of the harness is not needed anyway so it wont be much more work to repair it. I have a B6 06A spare harness, but the IAT and TB plugs are the newer half round versions. Off to the J yard I go.


Can you spot my problem? Thanks again for the diagram

I could if I could see your harness better, or if you gave me the wire colors.