Picked up my T2 loom and ecu the other day but wondered if anyone can tell me the wiring on the 8 way loom connector plug?



The blue wire goes to a single male spade near the crank, dizzy and TPS plug so assuming this could be used for the coolant temperature on the dash clocks,

The brown and green is just a short length to a male spade so this would be extended for oil pressure,

I'm assuming the other 6 would be permanent live, ignition live, fuel pump feed from relay, rev counter and ???

Also, there are 3 relay bases, one is fuel pump, one is fuel injection but any one know what the other is used for?
The grey, brown and red wires go to the loom connector plug show above but the blue wire doesn't seem to be connected to anything, i've done a continuity check to all the other multiplugs including the ecu plug but nothing!!



AND What's this

Is it some sort of diagnostic plug? it's close to the ecu plug and would be inside the car

The black wire goes to ecu plug pin no's 5 and 21, red to pin 7 and green to pin 20.