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Comments:
The oil pressure sensor is standard on all heavy duty
on-highway engines and is an integral part of the engine
monitoring system. However, the Engine Oil Pressure
Sensor is optional on medium duty engines and is not
required for engine monitoring.
Medium duty engines have a HEUI (Hydraulically
actuated Electronically controlled Unit Injector) fuel
system that uses high pressure oil to inject fuel. If the
engine oil pressure is too low, the fuel system cannot
supply fuel to the engine. Therefore, by the design of
the fuel system, it is impossible to run the engine without
suffi cient engine oil pressure.
Engine Monitoring Lamps