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Home >> Ford >> 2018 >> Transit Connect XL, Van Cargo >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Pinpoint Test H: Fuel Control Through Pinpoint Test JE: Integrated Ignition Coil Pack - (Except Diesel & Hybrid) >> Pinpoint Test Hg: Positive Crankcase Ventilation (PCV) System >> Test Procedure

Test Procedure

  1. HG1 CHECK FOR DTCS 

    Are DTCs P04DB, P051B, P051C, P051D, or P2282 present? 

    Yes No
    GO to  HG3. For symptoms without DTCs, GO to  HG2.
    For all others, RETURN to SYMPTOM CHARTS for further direction.
  2. HG2 VISUAL INSPECTION OF THE PCV SYSTEM 
    • Check the PCV valve, hoses and connections for leaks or restrictions.
    • Verify the PCV valve maintenance schedule has been followed.
    • Verify the correct PCV valve part number.
    • Verify the PCV valve is clean.
    • Verify the fresh air tube and related hoses are clean and routed correctly.

    Is a concern present? 

    Yes No
    REPAIR as necessary. VERIFY the symptom no longer exists. GO to  HG10.
  3. HG3 CHECK FOR LEAKS 
    • Check for disconnected, damaged or restricted vacuum lines between the engine and any vacuum operated components.
    • Check for disconnected, damaged or restricted intake air system lines between the engine and any intake air system components.
    • Check for disconnected, damaged or restricted positive crankcase ventilation (PCV) system lines between the engine and any PCV components.
    • Visually inspect for a damaged or pinched PCV hose o-ring seal.
    • Visually inspect for a correctly installed oil level indicator or a damaged oil level indicator o-ring seal.
    • Check for a correctly installed oil cap.
    • Check for air leaks between the throttle body and intake valves.
    • Visually inspect the intake throttle plate for sticking or binding.
    • Verify the correct PCV valve part number.

    Is a concern present? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 For DTCs P04DB or P2282, GO to  HG10.
    For all others, GO to  HG4.
  4. HG4 MONITOR THE CRANKCASE PRESSURE SENSOR PID 
    • Ignition ON, engine running.
    • Access the PCM and monitor the CRNKCAS_P_V (VOLT) PID.

    Is the voltage between 3.7 - 4.1 V? 

    Yes No
    For DTC P051B, GO to  HG9.
    For all others, GO to  HG5.    		 GO to  HG5.
  5. HG5 CHECK FOR VREF AT THE SENSOR 
    • Ignition OFF.
    • Crankcase Pressure Sensor connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) Crankcase Pressure Sensor Connector, Harness Side (-) Crankcase Pressure Sensor Connector, Harness Side
      VREF - Pin 3 SIGRTN - Pin 2

    Is the voltage between 4.5 - 5.5 V? 

    Yes No
    GO to  HG6. GO to PINPOINT TEST C .
  6. HG6 CHECK FOR AN OPEN 
    • Ignition OFF.
    • PCM connector disconnected.
    • Measure the resistance between:
      (+) Crankcase Pressure Sensor Connector, Harness Side (-) PCM Connector, Harness Side
      CKCP - Pin 1 CKCP

    Is the resistance less than 5 ohms? 

    Yes No
    GO to  HG7. REPAIR the open circuit. Clear the PCM DTCs.
    REPEAT the self-test.
  7. HG7 CHECK FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance between:
      (+) Crankcase Pressure Sensor Connector, Harness Side (-)
      CKCP - Pin 1 Ground

    Is the resistance greater than 10K ohms? 

    Yes No
    GO to  HG8. REPAIR the short circuit. Clear the PCM DTCs.
    REPEAT the self-test.
  8. HG8 CHECK FOR A SHORT TO VOLTAGE 
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) Crankcase Pressure Sensor Connector, Harness Side (-)
      CKCP - Pin 1 Ground

    Is any voltage present? 

    Yes No
    REPAIR the short circuit. Clear the PCM DTCs.
    REPEAT the self-test.    		 INSTALL a new Crankcase Pressure sensor.
    Clear the PCM DTCs. REPEAT the self-test.
  9. HG9 CHECK FOR INTERMITTENT CONCERNS 
    • Ignition OFF.
    • Crankcase Pressure Sensor connector connected.
    • PCM connector connected.
    • Ignition ON, engine running.
    • Access the PCM and monitor the CRNKCAS_P_V (VOLT) PID.
    • Wiggle the harness connector to simulate road shock.

    Does a sudden change in voltage occur while monitoring the PID? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 Unable to duplicate or identify the concern at this time.
    GO to PINPOINT TEST Z .
  10. HG10 PCV SYSTEM CHECK 
    • Start the engine and warm it until engine temperature is stable.
    • Disconnect the intake air system hose from the air cleaner outlet.
    • Place a stiff piece of paper over the disconnected intake air system hose opening. Wait 1 minute.

    Does vacuum hold the paper in place? 

    Yes No
    For DTC P04DB, INSTALL a new Crankcase Pressure sensor.
    Clear the PCM DTCs. REPEAT the self-test.
    For all others, the PCV system is OK.
    RETURN to SYMPTOM CHARTS for further direction.    		 CHECK for vacuum leaks or restrictions in the PCV system (such as oil cap, PCV valve, hoses, cut grommets, valve cover bolt torque or gasket leak). REFER to the appropriate Engine Emission Control article, Evaporative Emission (EVAP) Control System Vacuum Routing, for PCV system components and routing. REPAIR as necessary.
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