SFI SYSTEM (w/o Electronic Throttle Control System), Diagnostic DTC:P0106

DTC Code DTC Name
P0106 Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem

DESCRIPTION

By a built-in sensor unit, the manifold absolute pressure sensor 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.

A01376RE01
DTC No. DTC Detection Condition Trouble Area
P0106

  • Difference between the intake manifold pressures before and after the engine start remains 50 kPa or less for 2 seconds or more. (1 trip detection logic).

  • The pressure detected by the sensor is not within the standard range calculated from the engine speed and throttle opening angle. (1 trip detection logic).

  • The sensor is frozen.

  • Air induction system

  • Manifold absolute pressure sensor

WIRING DIAGRAM

A01364XE01

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK OTHER DTC OUTPUT (IN ADDITION TO P0106)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the intelligent tester ON.

    3. Select the following menu items: Powertrain / Engine and ECT / DTC.

    4. Read DTCs.

      Result
      Display (DTC Output) Proceed To
      P0106 A
      P0106 and other DTCs B

      Tech Tips

      If any DTCs other than P0106 is output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART

    A

  2. READ VALUE OF MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Connect the intelligent tester to the DLC3.

    2. Warm up the engine.

    3. Turn the intelligent tester ON.

    4. Select the following menu items: Powertrain / Engine and ECT / Data List / PIM.

    5. Read the PIM value at idling and 2,000 rpm.

      Standard
      Ignition switch ON (do not start engine)
      50 to 115 kPa

    OK

    GO TO "CHECK FOR INTERMITTENT PROBLEMS"

    NG

  3. CHECK AIR INDUCTION SYSTEM


    1. A01365N

      Check the PCV hose.

      OK
      The hose is not damaged and securely connected.
    2. A013831

      Check the vacuum hoses.

      OK
      The hoses are not damaged and securely connected.

    3. Check the intake manifold.

      OK
      The intake manifold is not cracked.

    NG

    REPAIR OR REPLACE AIR INDUCTION SYSTEM

    OK

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR