Jasesapphy

iTrader: (1)

Need some pics if possible of a 4x4 cossie loom behind the battery and the engine wiring sub looms.
Also has anyone got the full wiring schymatics of a cossie 4x4.

Need this for a conversion from a 2.0 DOHC, its on a jplate

any info thanks in advance

Cheers

Jasesapphy

iTrader: (1)

please

Jasesapphy

iTrader: (1)

anyone know

Doug

Jase what are you actually doing mate cossi in a 20 dohc sierra ?

Jasesapphy

iTrader: (1)

Yes Doug, Yb into my twinky i want to replace this, i was hoping that the engin loom would plug into existing loom, as the twinky has the 3 plugs behind the battery however someone has said its a not straight forward and i dont want to start bodging looms

Doug

Leave all the car loom in just splice the cosworth management loom in 5 wires

2 batt positives (Red Blue)
1 ignition positive (Black)
1 Rev counter (Green)
1 coolant temp guage (Brown/White)

And 1 earth on loom to body Near the management plug .

Have a look here will help you out .
http://www.siipicossu.com/manuaaleja...sis%20Info.pdf


Regards Doug .

Jasesapphy

iTrader: (1)

Cheers, Doug gets me a bit further, didnt really want to splice

Thanks for your help wouldnt mind getting me hands on a digram of the car loom

xr4x4rs

iTrader: (5)

ok

the twinky loom has 3 plugs behind the battery and the engine loom plugs in them iirc

the cossie loom only has one plug on the looms i have here

so on the twinky loom the 3 connectors some of the wiring is between connectors

buts its all the there for a cosy loom to plug straight into

what you need to find is the plug with all the sensors which are the same colour codes on teh cossy loom

you have on the cosy connector

green - rev counter
brown/green trace - oil light
thick red/blue trace - 12v+
black - switched ignition
brown/white trace - water temp gauge
thick black/red trace - fuel pump

now all these wires will be on one of teh connectors on the twinky loom bar the fuel pump wire which will be on a different connector

what you need to do is swap the fuel pump pin to the one not being used on the other connector, carnt remember which but you will see

the other 2 connectors on teh twinky loom are not used, but one does have teh batt light wire so you will need to make a batt loom up

not hard, just cut it out of your twinky loom and tape teh power and blue wire together and lay it back in as it should be, then just solder the blue wires up together discarding the connector

thats all you need to do and it should work

the other thing you will need to do is make afan loom up as n the twinky its in engine management and cossie its in fues box, again not hard to do as im sure tiff has a diagram on how to do it

but what i would check is the water temp gauge wire brown/white trace as theers 2 on the twinky loom so you need to find out which one is what and adjust accordingly

im in the same boat but ive done it before and i will be replacing my twinky in a months or so time to cossy yb

Jasesapphy

iTrader: (1)

Cheers Guys, all helps, kind of regretting the idea of going YB lots to change from front to back however the thought of a Gunship from NMS

PAUL S

iTrader: (8)

The plug connectors are a different shape so its not as simple as first appears, and they are not fro the same wires anyway

Dougs pointing you in the right direction, the simplest loom to use is the 2wd one its a much simpler set up and easier to splice in

xr4x4rs

iTrader: (5)

so if the plugs are different shape why have i done the conversion 3 times and never had to change a plug

PAUL S

iTrader: (8)

The 3 plugs that sit by the battery tray on the twin cam are not the same as the 3 plugs used on a 4wd cosworth loom

You are refering to the 2wd cosworth engine loom which only has one connector into the main loom

Jasesapphy

iTrader: (1)

its a bit of bodge still using the twinky stuff i would prefere to replace the entire car and engine loom i think

Ryan

i could do it so it looked factory and plugged straight

new loom and fit the old plug onto it so it plugs striaght onto the old main loom.

would need a few terminals swapping around, but seeing as i have all the tools, and your only about 30 mins from me if can easily be done.

Cheers

Ryan

Jasesapphy

iTrader: (1)

i dont want to keep the old twinky ecu, i dont want no eletrical issues, need a fan loom also and being suggested a 50amp cable and 40 amp relay for fuel pump,
Can all that be done and then there is the issue with the battery light and charging, Ryan can you sort all the above as you will understand it more than i, i dont want any bodges and i want to deffo loose the twinky stuff

Ryan

the cossy ECU loom is completely seperate, the only thing it connects to the main loom for is 4 things.

Fuel Pump trigger (irrelevant if your running new stuff)
Ignition Live
Rev Counter Signal to dash board
Water Temp Signal to dash board.

Never done a fan loom but i cant be hard.

Also regards fuel pump wiring thats WAAAAAAAAY overated stuff, but yes you can use it if you want.

Jasesapphy

iTrader: (1)

Suggested by Karl at NMS, thats what he recommended and also remove the restriction in turbo oil feed, hes doing the mapping

Jasesapphy

iTrader: (1)

Xr4x4 mentiond battery loom ?????????

Ryan

ok, well as i said it can be done.

Jasesapphy

iTrader: (1)

Will i have any issues with ford immoblisers e.t.c Can you quote by PM

Jasesapphy

iTrader: (1)

When Ratty did his he had problem with the charging circuit, battery light e.t.c.

Ryan

Can you speak to ratty and ask him what he needed to do, as i ever never done a dohc-cossy swap.

normally i do supply only.

Jasesapphy

iTrader: (1)

I will get him to call you bud, i will drop him a text i dont know if he sorted it

Ryan

ok mate, that would be great.

shouldnt be a problem getting around the immobiliser.

xr4x4rs

iTrader: (5)

ok

one its not a bodge as you will be still using the connectors

cosy fan loom and alternator loom are seperate to engine loom, so its 1 wire you have to solder for the batt light the blue one

then its just swapping 1 pin over from a different connector on the twinky main loom to another connector on the main loom wher all the sensor wires ares, the twinky engine loom wil be completely removed

so you have to make a fan loom up, easy and can be doen neat out the way,

the batt loom 2 wires which will go in teh original place its supose to go just not taped up with the engine loom as before, but you can tape it up in the engine loom and use the connector off the twinky engine loom and with the batt light wire on so it connects as it should, but will be easier to solder it

you will not be using any of the twinky engine loom what so ever
alls you will use is the main car loom, sod changing the whole car loom for 1 pin

heres a pic of teh conectors of a 4wd engine loom

these 3 connectors go across and mount up on teh bulkhaead , the injector loom connects to them so you dont need to touch this



and this is teh connector that will just plug up into the twinky loom and run providing you have swapped the fuel pump pin into the correct connector



its so simple to do, no bodging what so ever

Jasesapphy

iTrader: (1)

Cheers .

Will pass on to Ryan