What causes a SPN 157 engine injector to fail?

What causes a SPN 157 engine injector to fail?

The cause could be as simple as a failed lift pump, plugged injector, failed sensor, out of date ECM calibration or as bad as a failed relief valve,injector, gear pump fuel pump,Air in system. There are too many causes to guess what your failure would be without proper troubleshooting procedures performed. CODE REASON EFFECT

When does an engine give a fault code of SPN 157?

Engine giving fault code of SPN 157. When a condition exists that causes Fault Code 559 to become active, it is typical for the fault code to become active when the engine is heavily loaded and become inactive when the engine is lightly loaded.

What is the FMI code for SPN 157?

Of course, it’s Sunday night. First call was to Entegra who in turn called Spartan. Spartan called within 5 minutes and deciphered the SPN FMI codes into a Cummins 559 code which translates into – Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level.

What do you need to know about Cummins SPN 157?

With this code there are many causes and you would need Cummins insite to test, along with special fuel system tools. Any Cummins shop should have these to properly troubleshoot.

What does SPN 157 stand for in SRT?

SPN: 157 FMI: 18 LAMP: Yellow SRT: Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level. The ECM has detected that fuel pressure is lower than commanded pressure. Possibly hard to start or low power. Engine could possibly notstart cumminsdr, Mechanic Category: Medium and Heavy Trucks

What is PID for injector metering rail 1?

PID: P157 SPN: 157 FMI: 18 LAMP: Yellow SRT: Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level. The ECM has detected that fuel pressure is lower than commanded pressure. Possibly hard to start or low power. Engine could possibly notstart cumminsdr, Mechanic

What is the SPN code for the fuel filter?

SPN Code: SPN Name: SPN Description: 16: Engine Fuel Filter Differential Pressure (see also SPN 1382) Differential pressure measured across the fuel filter located between the fuel tank and the supply pump. See SPN 1382 and Figures SPN16_A & SPN16_B. 18: Engine Fuel Pressure (Extended Range) 19: Engine Oil Pressure (Extended Range) 20