i have just aqquired a complete loom from a 1991 2.0 DOHC EFI sierra but three wire have been cut. they are comong from the main ECU plug and these are the wire colours.

Brown
Brown with a green stripe
Blue with a green stripe

can anyone tell me what these wires are for

thankyou

 

what pins do they goto on the ecu multiplug...?

 

i am not really sure because the pins are not numbered but if u look at the plug face on and the loom is coming in from the right these are the numbers

blue with green stripe - top row pin 8 from the right
brown - top row pin 6 from the right

the brown wire with the green stripe i am not sure about because there is about 5 wires going to the ECU multiplug that are the same colour

 

is it an EECIV ecu?

 

yep it says on the side of the ecu.

EEC-IV
EFI-SD136

88BB-12A650-BB

if that helps at all

 

http://www.fordfans.cz/download/manual/eectch98.pdf

 

well according to that the brown wire is coast clutch solinoid and the blue/brown wire is converter clutch override.

that has gone completley over my head lol

 

the other thing that i have noticed is that on the side of my ecu there is a sticker that says 88BB-12A650-BB.

i found this on a site and it lists that for the sierra 1.8 is this right

 

or this.... http://www.turbosn95.com/cobra/info/a9l.pdf

 

think i pretty much got it sussed now cheers for all ure help mate..