Rail Pressure Sensor consists of piezo electric element and detects the inside pressure of Common Rail. ECM decides the amount of fuel injection using Rail Pressure Sensor signal. Besides, Rail Pressure Sensor signal is used as feed back signal for optimum rail pressure control according to various engine condition.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy | ● Voltage monitoring | ● Rail Pressure Sensor component ● Inside of ECM | ||
Enable Conditions | ● Engine run | |||
Threshold Value | ● When power supply 2 is below 4.7V or above 5.1V | |||
Diagnostic Time | ● 100ms | |||
Fail Safe | Fuel Cut | No | When this code is set with P1524 or P1525, Limp home mode is activated(Engine speed is fixed at 1200RPM ) | |
EGR Off | No | |||
Fuel Limit | YES | |||
MIL | YES | |||
Sensor Power Supply Voltage 2 | Sensor Power Supply Voltage 2 related sensor |
4.7~5.1V | APS 2 , Rail Pressure Sensor |
