fiestaturbo.com

[ford fiesta]

im almost finished with the 1.8 zetec conversion into my mk3.5, ive just got to wire it up and away i go. But heres where i hit a snag. The car was origionally a 1.1 with cfi and was running a FLUX ecu (internal edis) im using the rs1800 engine loom and an ALSO ecu (external edis). Now my problem is concerning joining the car loom to the engine loom, theyre both 12 or 16 pin connectors(i cant remember and its too cold to go out and count them) and both plug together, but whats worrying me is the wire colours dont match. I read on here that someone thought it would work and just fire up but im a bit worried about plugging them in and then blowing something because its different.

Can anyone shed some light on the matter or make any suggestions?


also theres another plug near the header tank with 8 pins that part of the old loom plugged into but theres nothing on the new loom that goes over to there or no spare plugs that might connect into it. Anyone know what this might be for?, its on the car loom, not the engine loom.

cheers

[Ollybee]

I did this conversion about three years ago and it would be much easier to get the Si engine loom and use that, the reason being it plugs straight into the car loom on the 1.1. The only difference is that the the temp gauge sender doesn't go through the main plug on the 1.1 so you have wire that through and also the techo feed if that was missing from the original loom. When you've done that you'll need a BLOB ecu from and early Mondeo for it run.

Also I hope you've changed the fuel pump as the CFI pump will probably run the 1600 zetec but I doubt it would for anything larger without leaning out at the top end.

[ford fiesta]

but the plug on my rs1800 loom plugs into the car loom aswell, so i thought it would work?, i want to try and stick with the rs1800 management if i can since its an rs1800 engine and also i want the external edis because ive a megasquirt for it once i get it certified as being safe for the road.


did you have to change any realys?, looking at haynes the cfi relay looks different to the efi one, is this true or am i ok with the existing one?

yeah i've a skyline pump to go into it once i get it started and idling i'll pop it in

any idea what the other plug by the anti freeze bottle is for?

cheers for your help

[ford fiesta]

heres a pic of the plug im refering to, anyone know what its for? click the pics for a better view




and heres the car loom to engine loom connector






does this look ok?

[Ollybee]

What year is the loom from?

You didn't mention it was RS1800 spec but yes you are best sticking with the RS management then. Smo has done this exact conversion he should be able to advise you better. I used the Si loom with internal EDIS so when I upgraded to RS spec I needed the CULT ecu which are like rocking horse poop. Smo has done exactly this though, if he doesn't reply maybe give him a PM.

Skyline fuel pump! Bit ott isnt it?

[ford fiesta]

skyline pump was free so thats the only reason its going in, i bought a 255l/h one for my silvia and then when i fitted it i discovered it had a skyline one fitted so i took it out and kept it safe

you dont have any idea what that other 8 pin connector is for no?

ill pm smo tonight if he doesn't reply

thanks again

[Ollybee]

Of the top of my head, no. I've just done a complete rewire the other week as well!

Is it injectors?

[ford fiesta]

no the injectors go onto a different plug, ive identified that one and that one is not a problm

the loom is from a 1994 car afik and mine is a 1996

[Smo]

That connector is for your CPS, oil pressure switch, coilpack, etc sub loom

[ford fiesta]

but they are on the rs1800 sub loom and theres a connector on the main rs1800 loom for that sub loom

[Smo]

Oooh, I am sorry, I looked at the photo wrong last night!

[ford fiesta]

Oooh, I am sorry, I looked at the photo wrong last night!

no problem, i am right in saying that the cps sub loom connects to the engine loom and not to this connector though aren't i?

[Smo]

Yeah, that's correct

[iRyannnBlakeee]

Hi, im also doing this and i am using escort loom from a 130 silvertop. Do i have do anything to the wiring for fuel pump? I also have large grey plug that i cannot see anything that plugs into it. any help would be appreciated