I have a 2014 corsa 1.4i that’s done 48,000 miles my engine light came on, told it was crank shaft sensor A had that replaced. 4 weeks later light is back on crankshaft sensor A&B so back to the garage who said it’s the timing chain and needed a specialest to fix it. £1000 and 12 weeks later the light is back on crankshaft sensor A so back to the garage who replace it for free and 2 days later the light is back on 😡😡 clearly there is an issue here but what???? Could it still be the timing chain. Driving it yesterday and there wasn’t a lot of power and also felt like the car jumped twice but I thought I’d imagined it it was like the car cut off and instantly restarted within a fraction of a second ???