I'd start off by ordering a wallet key, about 50-60 squid off the dealers. It's literally just a plastic key that will start the car and open the door lock via the barrel.

Tbh ews rarely intermittently give fault, they usually just either start or don't start. What are you reading it with? If you posted the above without mentioning a key I would have said crank sensor fault of some sorts. M50/2 engine?


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