Aldi:
Originally Posted by safechav
ok
as you said the one is the coolant temp, the white one IS a speed sensor plug

and im still researching the black one, i would of said fuel flow sensor but the colours are wrong.
im still researching the other plug now, very wierd colours
Thought it may be the ABS but as youve already said its the yellow one.
I'll keep looking, for the mean time though i dont think they are anything important, that additional coolant one doesnt appear on all the cars for some reason??? Not too sure why, don't worry about it though its a secondary one you still have the primary one.
The important plugs to have connected are the coolant temp, hydro electric pressure actuator, throttle switch, air charge temp, air flap position sensor, and the amal valve (if ur running one), all the rest arent crucial.