Thanks again Banjo. Yes this one had a completely new harness on it built from scratch. It was running fine until i gave it for a paint job to a nearby garage who has messed up the wiring when fixing back. They have messed up my dashboard wiring, burnt a few gauges and I am trying to put it in order by my self. Thank you for the lot of information. I will try checking all of them. I have a concern on the pump control system. I think the petrol pump suppose to come on during "ON" and switch off automatically by the ecu if there is no ignition. I don't think this is working and trying to find out how this engine on signal comes to the ecu. I read somewhere that ecu has to receive NE signal or something. I have no idea what this is. Anyway, I had to replace the fuel pump and right now I am struggling to seal the pump flange on the fuel tank. the gasket has deteriorated badly. as this is a mod, i don't know which unit they have fixed as the pump assembly as the original combination is not having a fuel pump in the tank, a carb model. I am from Sri Lanka and we don't have much DIYers here. So not much help....