ECD SYSTEM, Diagnostic DTC:P3280

DTC Code DTC Name
P3280 FBC Correction Quantities at Limitation

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P3280 FBC Correction Quantities at Limitation

Correction quantity in impermissible range for 15 seconds.

(3 trip detection logic)

  • Injector assembly

  • Cylinder compression pressure

 Does not come on DTC stored

CAUTION / NOTICE / HINT

Note

When replacing the ECM, injector assembly and/or engine assembly, the ECM needs registration and initialization.

Click here

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (FUEL BALANCING COMPENSATION (FBC))


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Start the engine.

    4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Fuel Balancing Compensation (FBC) / Data List / Cylinder 1 Quantity Compensation to Cylinder 4 Quantity Compensation.


      Powertrain > Engine and ECT > Active Test
      Active Test Display
      Fuel Balancing Compensation (FBC)
      Data List Display
      Cylinder 1 Quantity Compensation
      Cylinder 2 Quantity Compensation
      Cylinder 3 Quantity Compensation
      Cylinder 4 Quantity Compensation

    5. Read the value.

      Standard Value
      -5.0 to 4.0 mg/stk

      Tech Tips


      • If a malfunction is found during this inspection, the fuel injector may be stuck open.

      • If a malfunction is not found in the fuel injector, the probable cause may be a loss of compression pressure, the formation of soot deposits in the intake system or an excessively high or low injection volume.

      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 5 Click here

    NG

  2. CHECK CYLINDER COMPRESSION PRESSURE


    1. Check the cylinder compression pressure.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION Click here

    OK

  3. REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER


    1. Replace the injector assembly.

      Click here

      Tech Tips


      • Confirm which injector assemblies to replace using the quantity compensation values of cylinders 1 to 4.

      • If a value varies, replace the injector assembly of that cylinder.

      • If no values vary, replace all the injector assemblies.

    2. Register the injector compensation code.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 5 Click here

  4. CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION

    Result
    Proceed to
    NEXT

    NEXT

  5. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


      Powertrain > Engine and ECT > Trouble Codes

    8. Confirm that the DTC is not output again.

      Result
      Proceed to
      NEXT

    NEXT

    END