SFI SYSTEM, Diagnostic DTC:P0106 and P13A9

DTC Code DTC Name
P0106 Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Range / Performance
P13A9 Inconsistency of the Intake Pressure Before Starting (No Patmo Sensor)

DESCRIPTION

By a built-in sensor unit, the air pressure sensor assembly detects the intake manifold pressure as a voltage. The ECM then determines the basic injection duration and basic ignition advance angle based on this voltage.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0106

Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Range / Performance

Change in air pressure sensor assembly signal is outside threshold.

  • Intake system

  • Emission control system

  • Lubrication system

  • Air pressure sensor assembly

  • Wire harness or connector

  • ECM

Comes on

DTC stored

P13A9

Inconsistency of the Intake Pressure Before Starting (No Patmo Sensor)

Air pressure sensor signal received by ECM is different before and after the engine is started.

  • Intake system

  • Emission control system

  • Lubrication system

  • Air pressure sensor assembly

  • Wire harness or connector

  • ECM

Comes on

DTC stored

MONITOR DESCRIPTION

These DTCs are stored when a malfunction is detected in any part related to the intake system. If the air pressure sensor assembly value is outside of the threshold when the ignition switch is turned to ON or after the engine is started, the ECM will illuminate the MIL and store a DTC.

PROCEDURE

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0106 AND/OR P13A9)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Trouble Codes.

    5. Check for DTCs.

      Powertrain > Engine > Trouble Codes

      Result

      Result

      Proceed to

      DTC P0106 and/or P13A9 is output

      A

      DTC P0106 and/or P13A9 and other DTCs are output

      B
      Tip:

      If DTC P0106 and/or P13A9 and P0107, P0108, P0121, P0122, P0123, P2107, P2122 or P2123 are output simultaneously, troubleshoot for DTC P0107, P0108, P0121, P0122, P0123, P2107, P2122 or P2123 first.

    B

    GO TO DTC CHART

    Click here

    A

  2. READ VALUE USING GTS (MEASURING OF THE INLET PRESSURE)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Measuring of the Inlet Pressure.

      Powertrain > Engine > Data List

      Tester Display

      Measuring of the Inlet Pressure

    5. Read the value while ignition switch is ON and engine running.

      Standard

      Data List

      Condition

      Value

      Measuring of the Inlet Pressure

      Ignition switch ON

      Same value as the actual atmospheric pressure

      Idling with warm engine

      20 to 40 kPa
    Tip:

    • Standard atmospheric pressure is 101 kPa(abs) [758 mmHg(abs)]. For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (7.5 mmHg). The pressure also varies due to the weather (high atmospheric pressure, low atmospheric pressure).

    • Check "Atmospheric Pressure" in the Data List.

    Result

    Proceed to

    OK

    NG
    OK

    CHECK FOR INTERMITTENT PROBLEMS

    Click here

    NG

  3. CHECK INTAKE SYSTEM

    1. Check the intake system for vacuum leaks.

      Click here

      OK

      No leaks in intake system.

      Tip:

      Visually check that the air filter is normal.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE INTAKE SYSTEM

    OK

  4. CHECK EMISSION CONTROL SYSTEM

    1. Check the emission control system.

      Click here

      Tip:

      Check the purge VSV system for air leaks.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE EMISSION CONTROL SYSTEM

    OK

  5. CHECK LUBRICATION SYSTEM

    1. Check and ensure the following:

      1. The oil filler cap is not loose or damaged and is airtight.

      2. The engine oil level dipstick guide joint and seal gasket are tightly sealed.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE LUBRICATION SYSTEM

    OK

  6. REPLACE AIR PRESSURE SENSOR ASSEMBLY

    1. Replace the air pressure sensor assembly.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0106 OR P13A9)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine > Clear DTCs

    5. Turn the ignition switch off and wait for a few minutes.

    6. Perform the drive test.

    7. Turn the GTS on.

    8. Enter the following menus: Powertrain / Engine / Trouble Codes.

    9. Check for DTCs.

      Powertrain > Engine > Trouble Codes

    Result

    Result

    Proceed to

    DTC P0106 or P13A9 is output

    A

    DTCs are not output

    B
    A

    REPLACE ECM

    Click here

    B

    END