Detroit DD15 GHG14 (2014-16) Fault Code: SPN 164 FMI 21 (MCM) Fuel Rail Pressure Sensor Drift Low
DESCRIPTION:
Fuel rail pressure sensor – drift low.
MONITORED PARAMETER:
Fuel rail pressure sensor.
TYPICAL ENABLING CONDITIONS:
1. Key on
2. Engine off
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Once when enabling conditions met.
TYPICAL DURATION:
10 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
1. Key on
2. Engine off
PROBABLE CAUSES:
1. Fuel rail pressure sensor.
2. Fuel rail pressure sensor harness/connector.
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