First of all, welcome to us. For 2 years, I used vti 308 vehicle and I faced similar problems. First of all, the vehicle should look at the original software and error codes. Probably someone from the oil solenoid valve problem, sir. Although it is usually caused by coils and spark plugs, the problem is with the solenoid valve, which I call. I bought it from China, it was not a problem for 6 months and then I sold the vehicle. an expensive piece is around 300-500 rubles. Including taxes, it had cost £ 100 or so. But first look at the error codes.