What is the reason why the EFI diesel engine can't catch fire?

Usually, the switch or line is out of order.

Observe whether the circuit switch is restored and the fault light is on after the switch or line fails.

The switch problem is often overlooked, so you should check it first when you get on the bus.

It is also possible that the solenoid valve of the high-pressure oil pump is out of order. After the failure, the neutral speed can be increased to turn off the fire.

When the switch is good, the circuit is fine, but it still doesn't catch fire, the solenoid valve of the high pressure oil pump is out of order. Just check the solenoid valve of the high-pressure oil pump.

There are generally only two questions.