Hello:
There are many reasons for the problem you mentioned.
From the point of view of the oil circuit, the main fault is that the fuel pressure is low (It may be the fuel pump which is depressurizing).
p>On the circuit side. In perspective, this is because the gap between the spark plug electrodes is too large. The ignition energy of the ignition coil is reduced. The cylinder line is shorted or open circuited; the signal from the water temperature sensor is distorted.
< p>From the point of view of mechanical engine failure, if the valve is not closed tightly, if there are too many deposits carbon inside the engine, etc.It is recommended to start the investigation with this aspect. The problem should be found.
I wish you good use of the car* For questions about the car, ask the car master. Professional technicians from 4S stores cannt solve the problem in 10 minutes.
1. First jack up the vehicle, remove the right front wheel blade plate liner and remove the generator belt tensioner.
2. Next, loosen the crankshaft pulley threads, remove the engine fixed bracket and timing belt protective cover, and lower the cylinder block fixed bracket.
3. Finally, remove the crankshaft pulley, rotate the crankshaft to the top dead center position of the cylinder, mark it, remove the timing belt and timing tensioner and replace them.