as any one any idea how to convert to efi with out taking the s2 loom out av been on rs bible but thts if your swoping foe an xr3i loom if any one as done it could you tell me how and where the wires go thanks

 

look on rsbible under the s1 efi conversion

 

just swap the loom will be a lot tidyer plus u get th ecu in the car with out extending the wires

 

You can hide it in the heater box.

 

on the fuelling side you need the engine bay loom and injector/fuel pump relays (yellow ones) from the rs turbo and plumb the loom in like this...



Pic coutesy of Rab from when I did mine all those years ago

I can't remember how to wire in the ECU off the top of my head but I think it's on this same loom...

 

cheers m8 will av a go

 

hi guys i'm doin a zvh convertion using fiesta turbo efi manifold to my s2 do u know what throttle cable to us as the connection to the throttle body is different if you have any ideas would be a great help

 

you need the throttle cable and the pedal from the Mk4 EFi XR3

 

ive done this conversion to my estate and my combi and both times ive used an efi xr3i loom and its actually easier than you might think,easily done in a day and as said already will be neater and ecu will have its own cradle in the car behind the heater so nice and neat and not seen either

 

I would have used the EFi loom too if I had a garage to do it in

 

i converted the gfs mfi cab to efi using an efi loom aswell and as said its alot neater althou the prob i had was fixing wireing probs as it was from a breakers and whoever crashed it before it got scrapped decided to cut alot of wires up!!

A mate had an mfi cab he fitted an efi turbo engine in and all they did was wire in a fez turbo loom by just connecting certain wires to the batt and 1 of them to the ignition live!! they were the wires on the multi plug u disconnect the loom from.

 

ive done both my cars on my front garden not in a garage

 

wasn't getting at you mate, was just saying I would have done if I had the space.

 

f**k it just do it on your mums lawn i do lol

 

all very well using the XR3i loom, but what if you have an S1

 

is it the later mk5 xr3i loom that was efi not the mk4 one

 

90 spec mk4 xr3i's had the efi engines- thats the loom you want
its a straight swap then a few little changes and your car is efi turbo ready.

 

the loom i have in already is simular to the fiesta rs turbo ofac loom it is the later zetec xr3i loom can anyone explain the differance between the 2 and carnt i just unplug that part of the loom and plug in the injector loom and car loom i think it has the same connectors

 

hi guys i'm doin a zvh convertion using fiesta turbo efi manifold to my s2 do u know what throttle cable to us as the connection to the throttle body is different if you have any ideas would be a great help

 

hello mate you need a xr3i efi throttle cable

 

hi guys ive done the efi convesion useing the xr3i loom but i cant seem to adjust the CO ive tried every thing and im stuck please help
nathan