K14637412

Solution K14637412
Tuesday, February 6, 2018 9:41:33 PM CET
Solution
Title (customer effect)
Diagnostic Trouble Code ( DTC ) P0194 - 00 - Fuel Rail Pressure Sensor ( RPS ),
Circuit Erratic, Intermittent - US17 ( GHG17 ) Emissions And Newer ( Common Rail
Fuel System ); Common Model Years 2017 And 2018
Cause
Model Year 2017, 2018 - US17 GHG Engines generate DTC P0194-00 Fuel Rail Pressure Sensor ( RPS ) due to
corrosion on the sensor and wire harness terminals (Engineering equipment is needed to see the corrosion and the
fault code is the evidence). Due to the nature of the fault it may be difficult or not possible to duplicate the
symptoms.
Solution
For all active or in-active occurrences of this fault code complete the following process:
1. Replace the following parts:
• The Fuel Rail Pressure sensor
• The short internal wiring harness that runs between the connector on the lower section of the two-piece
valve cover and the pressure sensor, and the short internal wire harness on the 2-piece valve cover that
connects to the sensor.
Rail Pressure Sensor Harness
2. Secure the rail pressure sensor wire harness to the connector body with a cable tie to keep the harness away from the
valve train components that move during engine operation.
• NOTE: Ensure that there is enough slack in the wire that there is no tension on the wires and pins at the
connector when securing the cable tie.
Cable tie location
Wires from the sensor connector
Solution visibility
Dealer distribution
Support Area
CBR
Function(s)/component(s) affected
Function affected
fuel system , 1 1 0 EMS , 2 1 0 ACM , MID 128 – EMS , EECU , Diagnostic tool
Function Group
Function Group
237 injector and delivery pipe , 2841 Electronic Control Unit , 2846 Sensor , 2861
Engine Wiring Harness
Customer effect
Main customer effect
calibration/programming/pairing/missing operation , diagnostics/methodology , efficien
cy/abnormal behavior , fault code/display
Fluid implicated
fuel
Fluid pressure
high pressure , low pressure , zero pressure
Fault code(s)
OBD 2013 Diagnostic
Trouble Codes
P0194-00
Conditions
Vehicle operating mode
Frequency of occurrence of
problem
when driving , when stationary
random
Administration
Author
UT5061H
Last modified by
RU4469V
Creation date
10-07-2017 19:07
Date of last update
18-01-2018 17:01
Review date
22-08-2017 00:08
Status
Published
NA_MACK_Vehicle_Range
NA_MACK_Vehicle_Ran
ge
LR , LEU , MRU , Anthem , CHU , CXU , GU
NA_VOLVO_Vehicle_Range
NA_VOLVO_Vehicle_Ra
nge
VNR , VNL , VNM , VHD , VAH
Engine family
Engine family
11L Engine , 13L Engine , MP7 , MP8
Emission Standard
Emission Standard
2018 , OBD2017 , US17 GHG