PACCAR PX-6 CM2150 (2007-09) Fault Code: 559 (ISB/QSB3.3) PID: 157 SPN: 157 FMI: 18 Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level.
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable...
