Ok, so the L20b in engine is in my ute, and its running. I've also managed to score a later model ute dash, (the one with the three round gauges) and a tacho from a coupe dash. however, so far, i the only things i've managed to get to work on the dash is the temperature gauge, which comes on when i put the lights on, and goes to waaaaaayy past high, and the brake light, which comes on when i put the high beams on. Obviously somethings not right.

The indicators aren't working either yet.

The wiring harness was modified for another motor, and there is the possibility that the coil is playing up as i can't maintain constant revs. (It keeps missing at irregular intervals)

I'm really not a wiring person, so can anyone possibly point me in the right direction? Otherwise, i might see if i can find a standard wiring harness, and start from scratch.