Where is the 559 code on a Cummins Engine?
555 and 556 is for the breather filter on the side of the engine. There should be a large plastic looking box at the front left corner of the engine. There is a crankcase filter in there that is overdue for changing. I don’t see a 559 code in my list, but if you have low fuel rail pressure changing fuel filters is the first thing to do.
What is the low fuel pressure code for Cummins?
I have 482 for fuel pressure low. This is for ISX CM871, ISM CM876. I see 559 for a CM870. So my bad for that. 559 is likely going to be a bad front fueling actuator. If the fuel pressure is actually low you will still get a low fuel pressure code 482.
What does code 559 mean on an ECM?
The ECM has detected that fuel pressure is lower than commanded pressure. Possibly hard to start or low power. Engine could possibly not start. Fault Code 559 sets when the engine is running and measured rail fuel pressure remains at least 250 bar [3625 psi] less than commanded pressure.
When does the fault code 559 come on?
Fault Code 559 sets when the engine is running and measured rail fuel pressure remains at least 100 Bar [1450 psi] less than commanded pressure. Once detected, Fault Code 559 will remain active until the engine is turned off or until the measured rail fuel pressure matches the commanded rail fuel pressure.
What are the ISX fault codes for Cummins?
There is no charge for this service, but standard message and data rates may apply. crankcase pressure is too high when vent is bad ore piston/ring is bad. but usually it is bad sensor issue. 559 – low fuel pressure… is it stored code ore active every time engine running? 555 and 556 is for the breather filter on the side of the engine.
What are the faults of a Cummins Engine?
Incorrect amount of fuel in the nozzle in the One of the first three cylinders. Oil filters need to be replaced. Critical power loss. Loss of data in the engine control unit. Incorrect amount of fuel in the nozzle in one of the cylinders from the 4th to the 6th. Oil pressure sensor chain after oil filter-short circuit.