The engine control module ecm has detected that fuel pressure is lower than commanded pressure.
Cummins isx fuel rail pressure sensor.
This was a close call.
High pressure fuel pump 12.
These fuel pressure sensors effectively measure fuel pressure in the fuel rail alerting both the evap system and the fuel system to leaks.
High pressure relief valve and drain 18.
Replacement restores engine performance.
High pressure fuel pump outlet 14.
Last time around 2000 miles ago this sign came i went to peterbilt dealer they changed the fuel filter and scr nox temp sensor.
Fuel rail pressure sign.
Fault code 559 injector metering rail 1 pressure data valid but below normal operating range moderately severe level.
Pressure side fuel filter inlet 9.
Fuel pump actuator 13.
Then i run around 500 miles this sign came again when i try to climb at moutain.
Seized ceramic plunger compared to how it should look normally.
2013 peterbelt 386 isx 15 cummins.
Pressure side fuel filter 5 micron 10.
High pressure fuel rail supply 15.