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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 1926 (6.7L Diesel - DTCS P0008-00 To P02E3-00 - 2500HD & 3500HD) >> DTC Troubleshooting >> P020F-00-Fuel Injector 6 Performance >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. READ AND RECORD DTCS - CHECK FOR THE DTC 
    NOTE:

    If DTCs P0192, P0193, P0201, P0202, P0203, P0204, P0205, P0206, P0301, P0302, P0303, P0304, P0305, or P0306 are present, repair those DTCs before proceeding with this one.

    1. Turn the ignition on.
    2. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    3. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
    4. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    5. With the scan tool, read DTCs.

      Is the DTC Active or Pending?

      Yes 

      • Go To  2

      No 

  2. CHECK THE FUEL INJECTOR CONNECTION 
    1. Turn the ignition off.
    2. Remove the valve cover and check for loose valve cover harness wires at the injector terminals for the injector experiencing the DTC
      NOTE:

      The injector terminal nuts should be torqued to 1.5 Nm (13.0 in-lbs). Be very careful not to overtighten these nuts as damage to fuel injector will occur.

      Were any of the injector terminal nuts loose?

      Yes 

      • Torque the loose injector terminal nuts to 1.5 Nm (13.0 in-lbs).
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE FUEL INJECTOR PERFORMANCE 
    1. With the scan tool, erase DTCs.
    2. With scan tool, verify fuel level is above 15%. If not, add fuel, go to 3.
    3. Start engine and operate vehicle until coolant temperature is above 140 degrees Fahrenheit.
      NOTE:

      It is important that the conditions in steps 2 and 3 are met for the test to function properly.

    4. Operate vehicle at 50 mph and perform a zero fueling event (decel condition for 10 seconds, with foot off of accelerator pedal). Repeat 3-5 times.
    5. With the scan tool, check for DTCs.

      Did the injector performance DTC return for the suspect injector and high pressure connector?

      Yes 

      • Replace the Fuel Injector and high pressure connector in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

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