Stan's Epic Golf Build: 1.6se becomes 1.8T

[Stan]

Bora looks good Richie, vcds can recode the speedo

[dubster99]

Hey stan was reading through your build and realised that the agu has 4 plugs in the plenum and the 1.6 has three :/ also my cars a 1999 and the agu is 2001 which involves the wiring change? Got a diy on how you fixed this? And any other plugs that had to be changed? Cheera mate!

[Stan]

Hey Anthony, this was my setup:

Original sockets in the car - from the 1.6 there were three - Orange Brown and White. 3 sockets in the plenum and 3 plugs.
Car is a 2000 model, 2000 1.6 and wiring

AGU had 3 plugs Orange Brown and Green: a 1999 model and hence 1999 wiring.
Orange and brown went in their respective sockets, and I slightly modified the white plug to go into the green socket: see page 4

I made a map of the sockets and the colours of the wires that went to them, and same for both sets of plugs, to see what matched: See page 4

I initially left everything as was - car would crank but not fire. Everything else appeared to work.

In the end the only wire that needed changing was the one from the fuel pump relay to one of the sockets (cant remember which one, but it was a purple wire. I checked out some wiring diagrams for the 1.8T to try and work out which was the correct wire on the plug to swap them.

In the end Gav (hvw100) helped me out with working out the wires and Jimmy Mac had a big hand in helping me test what was working.

So to summerise - only 1 wire was out, it came from the fuel pump, and when mated with the correct wire in the 1.8T plug, by shifting the wire in the socket, it fired up and has been running ever since.

[Water Boy]

Hows this going Stan?

[Stan]

going well thanks, a few gremlins to sort which i think are heat related causing a flat spot but still have it.

[Sagecrazy]

I know old thread I’m doing same build hopefully I’ll get to upload, I’m currently at the position where I’m not getting fuel to rail. Tested j17 relay (409) tested power supply to fuel pump and I was only getting 0.3 volts. I’ve followed both wiring grams bfq (1.6) and aug 1.8t). I believe the purple and white in 10pin orange plug needs to pair with the purple and white in 6 pin brown plug. \_(0.o)_/ I’ll try tomorrow…