That piece of wire is hooked to a butterfly on the intake of the engine, when pulling the wire it closes the butterfly. This starves the engine off air and stalls/stops it. Shagg's are you sure your Luv is a 1980? It sounds to me like you have a much earlier series, drum brakes, column shift etc.
_________________
1980 4x4 KBD40 ISUZU/Chev Luv
Factory Fitted c190 Diesel Engine, ARB BullBar, Ramsey Winch, Custom Tilt Tray,

LUVTRKR wrote:
It does have a license plate so technically it is a street truck, that sets off car alarms and makes kids cry. lol