1969 vw fastback fuel injection wiring ?

[boldgroover]

hi guys just got the engine back in after a break of about 3-4 months and am struggling to remember where the wires go , in particular a double white wire both connected on one spade marked 18 / 35 , thought it might go to the starter but not 100% sure ? also which wires go here in picture ? think one form positive coil but dont know other ? many thanks

[KTPhil]

Kickdown switch wiring is in this diagram (F:

[boldgroover]

many thanks KTPhil , would you know where the other wire which is double white both on one spade marked 18/35 goes ?

[KTPhil]

I am thinking that goes down to terminal 50 at the starter solenoid, but lets be sure before you try and blow something. It is likely part of the cold start jet wiring, but I'm not familiar with the early version (I have a '71).

[boldgroover]

[KTPhil]

[boldgroover]

[KTPhil]

Maybe post a photo of the present wiring at the solenoid, and also see if the wire length seems compatible with it connecting there.

[boldgroover]

[KTPhil]

Note that if the wire is connected to the wrong terminal on the solenoid, it runs the jet all the time and makes it run very rich. A photo of what's there will help us advise which terminal to connect it to (and reveal if it's already connected to some other FI wire!).

By the way, if the wire is what we suspect, you can just tape it up and leave it disconnected; the car will run normally.

And since that cold start system only comes on when its very cold and while cranking, you probably will never notice/need it. Many disconnect the wire and plug the line leading to the jet for this reason.

[boldgroover]

[KTPhil]

Most likely it goes to that unused terminal on the solenoid. The wire marked 18 probably leads to ECU terminal 18. I'm not sure why the other is marked 35, when 50 is the chassis terminal number, but like I said before, the numbering is not identical.

Test for continuity of the double connector of the mystery wire to one of the pins on the cold start jet connector. It should be connected there, if it's the wire I am thinking it is.

The wiring we are interested in is at the upper left. Cold start jet is 10.

[boldgroover]

[jbillow]

terminal 18/35 goes to terminal 50 on the starter, 35 goes back to the cold start relay and is combined with #33 which goes to your cold start switch.

[boldgroover]