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SPN 102 - FMI 16 (Fault Code 124)

SPN102 FMI16
Intake Manifold 1 Pressure - Data Valid But Above Normal Operating Range - Moderately
Severe Level

Original Wiring Harness - Intake Manifold Pressure/Temperature Circuit

CODES:
Fault Code: 124
PID(P), SID(S): P102
FMI: 0/16
Lamp: Amber
SRT:
Revised Wiring Harness - Intake Manifold Pressure/Temperature Circuit
REASON: Intake Manifold 1 Pressure Sensor Circuit - Data Valid But Above Normal Operating Range - Moderately Severe Level. Intake manifold pressure has exceeded the maximum limit for the given engine rating.

EFFECT: Engine power derate.

Circuit Description:
The intake manifold pressure sensor is used by the ECM to monitor the engine intake manifold pressure.

Shop Talk:
This fault code become active when the intake manifold pressure exceeds the maximum pressure limit for a given engine rating.

Possible causes:
• Malfunctioning turbocharger wastegate
• Wastegate tampering
• Wrong turbocharger part
• Possible tampering of the fuel system or turbocharger system.
The sensor return configuration for Euro 4 ISB engines has been changed for automotive wiring harnesses manufactured from February 2012 onward. The new style wiring harnesses can be be identified using the method below:
• Disconnect the ECM connector
• Disconnect the camshaft position sensor
• Disconnect the intake manifold pressure/temperature sensor
• Check for continuity between the intake manifold pressure/temperature sensor RETURN pin and the camshaft position sensor RETURN pin.
• Check for continuity between ECM pin 47 and the camshaft position sensor RETURN pin
• Use the table below to determine which harness is fitted to the engine.


NOTE: QSB engines, all C series engines, and all L series engines are not affected by this change.


Read More:
SPN 102 - FMI 4 (Fault Code 123)
SPN 102 - FMI 3 (Fault Code 122)








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