SFI SYSTEM(w/o EGR System), Diagnostic DTC:P0107, P0108

DESCRIPTION

The manifold absolute pressure sensor detects pressure inside the intake manifold as an absolute pressure with a built-in sensor and outputs a voltage. Based on the voltage from the manifold absolute pressure sensor, the ECM controls the air fuel ratio and corrects any errors in the pressure sensor due to changes in pressure.

MONITOR DESCRIPTION

The ECM monitors the sensor voltage and uses this value to calculate the manifold absolute pressure. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the manifold absolute pressure sensor and stores a DTC.

Example:

When the sensor output voltage remains below 0.5 V, or higher than 4.5 V for 0.5 seconds, the ECM stores a DTC.

MONITOR STRATEGY

CONFIRMATION DRIVING PATTERN

1. Connect the intelligent tester to the DLC3.

2. Turn the power switch on (IG) and turn the tester on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the power switch off and wait for at least 30 seconds.

5. Turn the power switch on (IG) and turn the tester on.

6. Put the engine in inspection mode (maintenance mode) Click here.

7. Start the engine and wait 5 seconds or more.

8. Enter the following menus: Powertrain / Engine and ECT / DTC.

9. Read the pending DTCs.

   Tech Tips

   
   

   • If a pending DTC is output, the system is malfunctioning.

   • If a pending DTC is not output, perform the following procedure.

10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

11. Input the DTC: P0107 or P0108.

12. Check the DTC judgment result.

    Tester Display	Description
    NORMAL	DTC judgment completed System normal
    ABNORMAL	DTC judgment completed System abnormal
    INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions
    N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips

    
    

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER (MAP)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the tester on.

   4. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAP.

   5. Read the MAP value.

      OK
      Same value as the actual atmospheric pressure.

      Tech Tips

      
      

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

      • Also, check "Atmosphere Pressure" in the Data List.

   
   

   OK

   CHECK FOR INTERMITTENT PROBLEMS Click here

   NG

2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR)

   
   
   1. 

      Text in Illustration

      *a	Front view of wire harness connector (to Manifold Absolute Pressure Sensor)

      Disconnect the manifold absolute pressure sensor connector.

   2. Turn the power switch on (IG).

   3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition D3-3 (VC) - D3-2 (E2) Power switch on (IG) 4.5 to 5.5 V D3-1 (PIM) - D3-2 (E2) Power switch on (IG) 3.0 to 5.0 V

      Result

      Result	Proceed to
      Outside standard range	A
      Within standard range	B

   
   

   B

   REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here

   A

3. CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)

   
   

   1. Disconnect the manifold absolute pressure sensor connector.

   2. Disconnect the ECM connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition D3-3 (VC) - D27-72 (VCPM) Always Below 1 Ω D3-2 (E2) - D27-71 (EPIM) Always Below 1 Ω D3-1 (PIM) - D27-69 (PIM) Always Below 1 Ω D3-3 (VC) or D27-72 (VCPM) - Body ground Always 10 kΩ or higher D3-1 (PIM) or D27-69 (PIM) - Body ground Always 10 kΩ or higher

   
   

   OK

   REPLACE ECM Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

4. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

   
   

   1. Replace the manifold absolute pressure sensor Click here.

   
   

   NEXT

5. CHECK WHETHER DTC OUTPUT RECURS (DTC P0107 OR P0108)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the power switch on (IG) and turn the tester on.

   3. Clear the DTCs Click here.

   4. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

   5. Enter the following menus: Powertrain / Engine and ECT / DTC.

   6. Read the DTCs.

      Result

      Result	Proceed to
      DTC is not output	A
      DTC P0107 or P0108 is output	B

   
   

   A

   END

   B

   REPLACE ECM Click here