Electrics question ce1 88 mk2 golf gti

[emery1990]

Is there any one place where there is various live feeds? Like a manifold of some sort, I need about 3 live feeds but do not know where to get them from, Cant use the fuel pump relay earth trigger, as Im using that already, although following it in the bay it connects up to my water temp sensor, so going to need a new feed for that now also!.

Really confusing me.!

[rubjonny]

permanent lives? if so battery positive. if you want ignition lives, look at black wire to coil, black wire to throttle body and black/yellow to over-run cutoff valve behind airbox

[emery1990]

Ok thanks, its ignition lives ill need.

Right I need to connect the ecu feed onto the appropriate relay pin? thats all the clue I was given lol. Someone told me to go onto the ecu relay, but I dont know how to connect onto it, ive found it but there's already two wires on it.

[rubjonny]

there is no ecu relay on a 16v, on a digifant 8v the ecu relay output is a yellow/black wire on a 2 pin plug 'R' on the back of the fusebox.

missed this befoere, but whats this about the fuel pump earth using the same feed as the water temp? no it doesnt 

[emery1990]

ohright lol thats what someone told me too do, use the ecu relay for the ms live feed lol

The yellow and red wire lol theres also a yellow and red wire connecting to my water temp/sender, the one on the left hand side as you look at it.

Edit, on your fusebox thread, what does like position 17 open mean ? does it mean, i could put a wire in there to feed something ?

[emery1990]

On this picture, what does each wire do ? Are there two live feeds is any one of them live whilst cranking? I need a feed that's live when cranking to feed my ecu. That black yellow wire ILl use that for my TPS if needed. blacks ground, but what about the brown and black wire and the white wire



Also on a normal abf on the 3 pinned plug to the TPS, what are the feeds? tps signal, live and ground? or is it something else.

[rubjonny]

the fuel pump relay red/yel wire is an earth, this is the trigger from the ecu top tell relay to switch on the pump. the red/yel wire to temp sensor runs to the dash, it has nothing to do with the fuel pump relay trigger

brown/black is earth for the over-run cutoff, yel/black is ign live feed for the overrun cutoff. black and white are for the cold throttle enrichment valve, neither wire is any use to you.

on the kr throttle switch there are also 3 wires:
black - ign live
white  - to throttle enrichment valve
black/yel - to ecu and isv control unit (live when throttle closed)

so use the black/yel wire in your picture, and the black wire to the throttle switch.

[emery1990]

Your the man! Ive got it all sorted now hopefully. So that black and yellow wire, I can use to power an ecu then yes, Ive got live to injectors and only need a live to the ms now you have said the black wire can go to throttle switch, as that was my next question anyway. If I can, ILl trun my engine on this weekend

Haha, dint think it would!

[emery1990]

 been advised by danny p to rip the whole lot and just use the plug, so going to start it all over again.!

[danny_p]

i know it sounds a brutal solution but i has a horrible feeling your going to spend a long time chaseing ghosts,  i have allways found it faster to build MS looms from scratch.

i would say this applyes even more when you have limuted experiance with automotive electrics as it removes dought  and when your going for first start theer are enough varibles to play with why add uncertanty.  also iirc you need to do a tweeks to get the ms to work completly with the vw fusebox