Tiggo 5 sometimes the throttle won't open.

Hello, this is a symptom caused by lack of motivation! Usually, insufficient oil supply from the oil pump, poor ignition coil or spark plug, and wrong sensor signal are common reasons for this phenomenon! In addition, if there are too many carbon deposits in the throttle or intake system and the fuel injector, there will be occasional failure to refuel! I suggest you do an inspection and maintenance in time to avoid causing more problems! I hope it helps you. Have a nice trip. If there is something wrong with your car, ask the car mechanic. 4S shop professional technician, 10 minutes to solve.