hello.
Vauxhall corsa 1.2, 2004. garage repaired head gasket. engine would not start. keep getting a camshaft failure fault. have tested both camshaft and crankshaft sensors and signals are good. tested timing setup. but still the engine runs really poor at best, or just starts then cuts off. if you are fortunate enough to keep the engine running to correct temperature. then it drives great. but switch of ignition and leave 10 minutes and will not start again.
This car is fast giving me grey hair. any ideas please.