E30 Zone

hi i have got a second hand wireing loom for my bm 325i the tps sensor plug is diffrent to my old loom, ive been told it the one from a auto, is round with 6 pins i think, what wires do what so then i can change the plug to my old one

Three of the wires go to the throttle position switch and three go to a throttle position potentiometer. The three you want are the ones to the switch which are the same colours as the wires in your old loom.
Cut the plug from the old loom with a length of wire attached, and splice to the new loom, matching colours.

ok mate cheers