SPN 1319 - FMI 2 (Fault Code 419)
Tuesday, July 10, 2018
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SPN1319 FMI2
Intake Manifold Pressure Bank Imbalance - Data Erratic, Intermittent, or Incorrect
CODES:
Fault Code: 419
PID(P), SID(S):
SPN: 1319
FMI: 2/2
Lamp: Amber
REASON: An error in the intake manifold pressure sensor signal was detected by the ECM.
EFFECT: Engine power derate.
Circuit Description:
The engine control module (ECM) provides a 5 volt supply to the intake manifold pressure sensor on the sensor supply circuit. The ECM also provides a ground on the sensor return circuit. The intake manifold pressure sensor provides a signal to the ECM on the intake manifold pressure sensor signal circuit. This sensor signal voltage changes based on the pressure in the intake manifold.
Component Location:
The intake manifold pressure sensor is located in the air intake manifold toward the front of the engine.
Conditions for Running the Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.
Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected the intake manifold pressure reading was reading higher or lower than expected.
Action Taken When the Fault Code is Active:
• The ECM illuminates the amber CHECK ENGINE lamp and/or the malfunction indicator lamp (MIL) immediately when the diagnostic runs and fails.
Conditions for Clearing the Fault Code:
• To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
• The fault code status displayed by the recommended Cummins® electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes.
• The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.
• The "Reset All Faults" command in the recommended Cummins® electronic service tool or equivalent can be used to clear active and inactive faults.
Shop Talk:
Possible causes of this fault code include:
Signal wire shorted to ground
• A damaged intake manifold pressure sensor
Read More:
SPN 639 - FMI 2 (Fault Code 426)
SPN 111 - FMI 2 (Fault Code 422)
Blog.Teknisi
Intake Manifold Pressure Bank Imbalance - Data Erratic, Intermittent, or Incorrect
 |
| Intake Manifold Pressure Sensor |
CODES:
Fault Code: 419
PID(P), SID(S):
SPN: 1319
FMI: 2/2
Lamp: Amber
REASON: An error in the intake manifold pressure sensor signal was detected by the ECM.
EFFECT: Engine power derate.
Circuit Description:
The engine control module (ECM) provides a 5 volt supply to the intake manifold pressure sensor on the sensor supply circuit. The ECM also provides a ground on the sensor return circuit. The intake manifold pressure sensor provides a signal to the ECM on the intake manifold pressure sensor signal circuit. This sensor signal voltage changes based on the pressure in the intake manifold.
Component Location:
The intake manifold pressure sensor is located in the air intake manifold toward the front of the engine.
Conditions for Running the Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.
Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected the intake manifold pressure reading was reading higher or lower than expected.
Action Taken When the Fault Code is Active:
• The ECM illuminates the amber CHECK ENGINE lamp and/or the malfunction indicator lamp (MIL) immediately when the diagnostic runs and fails.
Conditions for Clearing the Fault Code:
• To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
• The fault code status displayed by the recommended Cummins® electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes.
• The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.
• The "Reset All Faults" command in the recommended Cummins® electronic service tool or equivalent can be used to clear active and inactive faults.
Shop Talk:
Possible causes of this fault code include:
Signal wire shorted to ground
• A damaged intake manifold pressure sensor
Read More:
SPN 639 - FMI 2 (Fault Code 426)
SPN 111 - FMI 2 (Fault Code 422)
Blog.Teknisi
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