Engine check light
I found an old post re the ignition timing ,which shows shorting the A and B wires together on the diagnostic plug , also bring the idle up to 1000 , which gives you a base timing setting so I have adjusted to 10BTDC , this seamed to have worked .
My next question is re the engine check light , it does not illuminate , it appears that 1 side of the bulb is permanently grounded so I would expect the ecu to switch a poss feed to make it illuminate ? .
However the gearbox over heat light is also wired with a permanent ground , the switch is a ground switch , so the light cannot work , easy fix to swap the permanent side to a live .
Does anyone have a diagram of the warning light circuit , also should it illuminate when the ignition is turned on ?