Thanks for that. I have checked voltage and OCV is 12.5v. I cannot heard any priming pump when ignition is turned on. Petrol is quite old but has been treated previously with forte petrol additive some time ago, so I think it's probably had it. I will drain and replace and see if that does it. Will check plug as well. Thanks for the info regarding the management light when cranking. I would be interested to know how to clear any faults codes though if you could spare the time please.