Cat Fault Code E890 __exclusive__

triggers when the Engine Control Module (ECM) actively reduces engine power (torque) to protect the engine or aftertreatment system from damage. The “Severity 3” rating means the condition is serious but not immediately catastrophic. You typically lose 25-40% of available horsepower, but the engine will continue to run.

If you've repaired a broken line, use a manual grease gun to "re-build" pressure in that specific line before restarting the autolube system to prevent a "false" E890 reappearance. Clearing the Code cat fault code e890

: The grease pump may not be delivering sufficient pressure due to internal wear or failure. triggers when the Engine Control Module (ECM) actively

: Use a manual grease gun on the valve inlet. If it takes extreme pressure to move the piston, look for a blocked pin joint downstream. How to Clear the Code Unlike standard diagnostic codes, E890 cannot be cleared manually If you've repaired a broken line, use a

: After a repair, you must "re-build" pressure in the lines using a manual grease gun before starting the test; otherwise, the first automated cycle may fail and re-trigger the code. Cat ET service tool 966M Wheel Loader Autolube Troubleshooting | Pump | Valve

This article is for informational purposes only. Always follow OEM safety procedures and local regulations when servicing heavy machinery.