red box esc wiring and plugs

[a.south1234]

hi
i have a red box esc with a vacumn take off and a part number 89fb-12a297-bb
this is the wiring diagram that i believe is for it

i think this plug is for the water temperature with a "brown" and "brown and green" wire

i think this is for the crank sensor as it fits


this is for the coil i believe



this im not sure what it is for as it is not on the wiring diagram this has one black wire going to it


ive read elsewhere that it could be for oil pressure, if it is does it need to be plugged in? also where does it go to?

im not sure what this is for

it has a brown and green wire going to it

finally i have this plug

it has a "black","brown and green","brown" and a "green" wires going into it but has six wires leaving it?
i think the black and brown are ignition and earth
but i dont know what the "brown and green" and "green" wires are for

thanks for any help

[rwd2ltrfiesta]

fink the last plug is were it joins to the original car so the black wire would be your ignition in and the brown 1 is the earth... so basically there the only 2 wires you need, wouldnt worry about the temps plugs as i guess youll be using after market gauges

[a.south1234]

so i should just leave the plugs that only have one wire going to them as they are only used for gauges on the dash, which i havnt got

[rwd2ltrfiesta]

yep i removed them completely

[Svein]

Copy & Paste from Haynes manuals

I copied and pasted these drawings some time ago.
One for water temp only ESC and one for for water temp and air temp type ESC. They look the same same but plug is wired different.

89fb type is not the one in your drawing, your drawing is for 91fb type

Look at my attachment, think your ESC is the upper one

[a.south1234]

sorry i cant really work out what is happening in the circuit diagram, does this mean i have a air temp sensor aswell?
also i am using there temperature sender that is already in the zetec thermostat housing, am i right to think this works like a thermistor and changes resistance with the temperature? would this mean it wouldnt matter which way round the sensor is plugged in?
cheers for the help

[Svein]

Sorry not been on my PC for the last few days

No its me that is wrong. your drawing is correct for the 89 type ESC
Thought that I recognized the drawing as the two sensor type ESC, I was wrong

Esc starting with 89 is the single temp sensor type ESC
Esc starting with 91 is the dual temp sensor type ESC

Again SORRY for misleading info

[a.south1234]

all ended great, i managed to get my engine running