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Wiring diagram????????????
July 4, 2018
9:47 pm
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Andi
Leicester
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This topic again.....
I have a zetec Zero 61 plate, GBS plenum, Emerald ECU.
http://www.gbsownersclub.co.uk...../08/04.jpg

Two days ago I had an issue whereby I broke down on the road the HP fuel pump kept blowing a fuse. Got the car towed back to my folks house and the fuse is not blowing anymore. But also there is no power to pump but there is to the fuse and it seems like the fault must be in that grey and brown wire to the pump.
I ran a wire direct to the pump which worked the pump but the car will still not start and I have found a red wire disconnected coming from the loom under the dash with no obvious place for it to go.
I hate electrical problems and will have to get help with fixing it but I wondered if there was a diagram, no matter how rough to help me out.
I`m guessing its an early gbs loom and has some wires labelled like fuel pump and lambda and it is quite a tidy job.
I`ve seen an old post but the dropbox link was dead.

No time is a good time for the car to break down but with all this sun around its almost a crime.Laugh

July 5, 2018
2:05 pm
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Simon
GBS Technical
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Hi

It sounds like you have a Plug and Play loom, but I have seen P&P engine looms grafted onto the early zero loom, which itself was an adaptation of the Vicky green.

Proceeding on the basis you have the P&P, the fuse board is the tell tail. Slots for 16 fuses, although not all are filled, and two covers, the cover at the opposite end of the fuse board to the fuses is over two relays, the middle cover is over five OR six relays depending on switching.

Fuel pumps are powered through fuse 12 which should be one of the two 20 amp fuses the other is in position 6 for main beam

The fuses are not numbered, and the fuse board is usually fitted upside down, fuses lower than the relays, but I have seen them at all angles. so you will have to work this out. In standard position, fuses down, bottom right is fuse 1, fuse 4 is lower line left and number 12 is two above that, make sense?

Fuse 12 feeds both pumps, so is the rear low pressure working? if not remove the cover off the two relays and swap the relays over. You are swapping the fuel pump relay and the cooling fan relay. if the pumps now work the relay has failed.

If no joy we we will have to go further.

Let us know the outcome

July 7, 2018
7:25 pm
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Andi
Leicester
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Got someone coming to have a look tomorrow....
But there was a 8 fuse box in the actual engine bay bulkhead and behind that in the car (dash/ centre console bit) there is a bank of 6 relays.
Ill let you know what we find.

Cheers
Andi

July 7, 2018
7:39 pm
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Simon
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If you have a split fuse board you likely have a graphed on GBS loom onto something else.

Can you post pics ?

I have most loom. Pin outs not all unfortunately,

My guess is that the car started with another power plant which was later upgraded to Zetec the reason you have the GBS plug and play sub loom we need to establish which main loom you have.

July 8, 2018
1:47 pm
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Andi
Leicester
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Hi,
Not sure the pics will be of much use but here are the links
https://postimg.cc/image/ixuq4abqd/

https://postimg.cc/image/fr06kp1l1/

There does not appear to be any power to the ecu or fuel pump and there is no spark either (can it get any worse??)
There is continuity to the fuel pump. From what I can gather the fuel pump shouldnt run without the ecu which grounds it but when we run a live wire to the pump it operates the pump????
The red wire (indicated in yellow) is live and we are not sure where is goes. It comes out of the part of the loom which feeds the lights (arrowed)

I`ll let you know what happens after tinkering the rest of today.

Andi

If anyone has an K6 ecu connector pin diagram that would be great. Cannot find one on emeralds website

July 8, 2018
5:44 pm
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Andi
Leicester
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Ok, it`s up and running.
The red wire was power to the ECU but there were no visible signs as to where it went but we have made a new connection to a switched live.
The pump has had new wires and it started up fine.
Cheers Andi

July 8, 2018
9:52 pm
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Simon
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things move quickly on here

12:47 answers

pics show, its a mash up, P&P engine loom attached to what looks like early zero, as long as it works, the rest is just cosmetic.

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