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PACCAR PX-8 CM2150 (2007-09) Fault Code: 124 PID: 102 SPN: FMI: 0 Intake Manifold 1 Pressure Sensor Circuit – Data Valid but Above 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 fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.
This fault code becomes active when the intake manifold pressure exceeds the maximum pressure limit for a given engine rating.
Possible causes:
1)Malfunctioning turbocharger wastegate
2)Wastegate tampering
3)Wrong turbocharger part
4)Possible tampering of the fuel system or turbocharger system.
Possible repairs:
1)Replace the intake manifold pressure sensor.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 123 PID: 102 SPN: 102 FMI: 4 Intake Manifold 1 Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage or open circuit detected at the intake manifold pressure circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 122 PID: 102 SPN: 102 FMI: 3 Intake Manifold 1 Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the intake manifold pressure circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 115 PID: 190 SPN: 612 FMI: 2 Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect. The engine control module (ECM) has detected that the primary and backup speed sensor signals are connected backwards.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 111 PID: SID 254 SPN: 629 FMI: 12 Electronic Control Module Critical Internal Failure – Bad Intelligent Device or Component. Error internal to the electronic control module (ECM) related to memory hardware failures or internal ECM voltage supply circuits.
Cummins ISM CM870 (2003-06) Fault Code: 111 PID: S254 SPN: 629 FMI: 12/12 Engine Control Module Critical Internal Failure – Bad Intelligent Device or Component. Error internal to the engine control module (ECM) related to memory hardware malfunctions or internal ECM voltage supply circuits.
Cummins ISM CM870 (2003-06) Fault Code: 9121 PID: S146 SPN: 2791 FMI: 0/15 EGR Valve Actuator Over Temperature (Calculated) – Data Above Normal Range – least severe level.