With the popularity of electronically controlled diesel engines, some new technologies and applications are gradually becoming familiar. Many people may have heard of the problem of limping home, so what is limping home?

Actually, limping home is a model of electronically controlled diesel engine with trouble.

Baotou beiben accessories engine malfunction, but will not stop immediately, but will limit the power of the engine, the engine speed can be increased to 1700rpm, the driver can drive to the nearest service station for maintenance.

Oil way: the oil circuit includes low pressure oil circuit, high pressure oil circuit.

Low pressure oil into the oil plug into the oil shortage and the oil return line is pressed and can cause the limp home failure mode; high pressure oil pipe leakage, flow measurement unit fault, high-pressure oil pump and the fuel injector inlet leak or injector needle stuck fault may also lead to limp home.

Sensor problems: electronically controlled engines have adopted a more user-friendly design, more consideration of safety factors.

ECU overheating protection function, when the water temperature, oil temperature is too high, when the inlet will start the protection function, limiting the power of the engine, Baotou beiben engine accessories into limp mode. Also due to the common temperature sensor, Baotou beiben accessories oil pressure temperature sensor, pressure sensor fault, will the same cause limp home mode.

That is to say, limping home is a function of engine control. When the engine is not fatal fault, it should be guaranteed to drive to the service station at low speed.