2006 DODGE RAM SRT-10 Service Repair Manual

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Page 521 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P0148-HIGH PRESSURE COMMON RAIL (HPCR) CHECKSUM
For a complete wiring diagramRefer to Section 8W.
When Monitored:
While the engine is running.
Set Condition:
A deviation between the fuel pressure set

Page 522 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 3.FUEL CONTROL ACTUATOR
Check for a mechanically stuck Fuel Control Actuator (FCA). Using the scantool, actuate the fuel control actuator.
NOTE: The fuel control actuator will only click when cycled o

Page 523 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 8.FUEL RETURN LINE OBSTRUCTION, DAMAGED OR DEBRIS
Check the fuel return lines for signs of obstruction, damage, or debris.
Are the fuel drain lines damaged or blocked?
Ye s>>
Repair cause of high fuel

8.FUEL RETURN LINE OBSTRUCTION, DAMAGED OR DEBRIS
Check the fuel return lines for signs of obstruction, damage, or debris.
Are the fuel drain lines damaged or blocked?
Ye s>>
Repair cause of high fuel drain line restriction.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 9
9.LIFT PUMP FLOW
Perform the no trouble code*LIFT PUMP FLOW TEST. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
Did the Lift pump pass the test?
Ye s>>
Go To 10
No>>
Replace the Lift Pump.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
10.PRESSURE LIMITING VALVE
Perform the no trouble code test*PRESSURE LIMITING VALVE ON THE FUEL RAIL FOR INTERNAL LEAKS.
Did the pressure limiting valve pass the test procedure?
Ye s>>
Go To 11
No>>
Replace the Pressure Limiting Valve.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
11 .LEAKING FUEL INJECTORS OR HIGH PRESSURE CONNECTORS
Perform the no trouble test*INJECTOR RETURN FLOW TEST. (Refer to 9 - ENGINE - DIAGNOSIS AND TEST-
ING)
Are any Injectors leaking or high pressure connectors leaking?
Ye s>>
Replace or repair the leaking fuel injectors or high pressure connectors.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 12
12.HIGH PRESSURE FUEL PUMP
Perform the no trouble code test*HIGH PRESSURE FUEL PUMP PERFORMANCE TEST. (Refer to 9 - ENGINE
- DIAGNOSIS AND TESTING)
Did the fuel pump pass the high pressure fuel pump performance test?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure). (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
No>>
Replace the High pressure fuel pump.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

Page 524 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P0169-WATER IN FUEL (WIF) LIGHT ON TOO LONG
For a complete wiring diagramRefer to Section 8W.

Page 525 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
While the engine is running.
Set Condition:
Water in fuel light was on for a calibrated amount of time.
Possible Causes
OTHER DTC’S PRESENT
WATER IN FUEL
Always perform the Pre-Diagn

Page 526 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P0191-FUEL RAIL PRESSURE SENSOR PERFORMANCE
For a complete wiring diagramRefer to Section 8W.

Page 527 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
At key on.
Set Condition:
The fuel pressure sensor reading at key on does not match the expected fuel pressure reading at key on.
Possible Causes
OTHER DTC’S PRESENT
FUEL RAIL PRESSU

Page 528 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P0192-FUEL PRESSURE SENSOR VOLTAGE TOO LOW
For a complete wiring diagramRefer to Section 8W.

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