2G little help with ECU wiring.

[1990telawd]

Alright so i have been chasing down problems with the 95 tsi awd since i got it.

I finally found out it had an improper 6 bolt swap done to it which has been making it run badly. Well now i'm down by the ecu and i'm noticing that some wires are spliced and i cant figure out why. There's three big green wires in the going into the ecu in pins 75 (o2 sensor port), 76 (o2 sensor port), and 78 which should be empty.
I'm just wondering if anyone can give me a hand and tell me a site or any help to get me back on track as to what color wires should be going into the 75, 76, and 78 pins.

I hope this gets me back on the road, thanks in advance.

 

[droppinbottom]

According to my chiltons book all three of those wires should be white.
75 goes to rear heated oxygen sensor
76 goes to front heated oxygen sensor
78 goes to knock sensor

hope that helps a bit

 

[1990telawd]

so i have three white wires and they all go to 1 of three spots, i guess i will jsut try a bit . Thanks for the help, and thats for the 95 not the later ones, rre's say front and read but say 78 should be empty but i will give it a shot thanks for the zippy answer does the chiltons manual have the hwole ecu layout with the wire colors, I have a haynes and i didnt see that.

 

[droppinbottom]

yeah and give me a minute and I will try to get you a good scan of it.

 

[droppinbottom]

Here is a scan of the ecu wiring for the 95 tsi. If you open it will something you can zoom with it will be pretty easy to read.

You must be logged in to view this image or video.

 

[1990telawd]

but i cant read it, even when zoomed in it gets to pixelated. Maybe if you do it a little higher resolution it will help. Where are chilton manuals usually sold? i should just pick one up.

 

[droppinbottom]

I got mine at local auto parts store.
Yeah on my machine it will let me zoom in and it stays clear but I just saved that exact image and tried to zoom and it gets blury. I could try to email you one that would be alot clearer if you want.

 

[1990telawd]

that would help a lot i pmd you about my email address. Thanks a lot.