Quick update: - PC111 eliminated as possible cause (for the second time). - Different ECU tried - nope. - Removed, cleaned etc ECU ground plate, and earth - nope. - ECU plugs closely examined, cleaned, sprayed etc - nope. I did find that the lower plug that connects to the ECU is cracked, and the securing bar fractured (bar now repaired) - I'm going to try to get a replacement plug/loom section. Any suggestions? Tomorrow I will have a go at measuring the air gap on the ignition sensor pick-up (does look quite tricky to do, and I would prefer not to drain the coolant system if possible). Thanks for listening, Spin |