DTC P0068 Map/MAF - Throttle Position Correlation: Notes
DTC DETECTING CONDITION:
Detected when two consecutive driving cycles with fault occur.
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to
OPERATION
, Clear Memory Mode.>, and Inspection Mode <Ref. to
PROCEDURE
, Inspection Mode.>.
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK AIR INTAKE SYSTEM. | Are there holes, loose bolts or disconnection of hose on air intake system? | Repair the air intake system. | Go to step 2 . |
2 CHECK MANIFOLD ABSOLUTE PRESSURE AND INTAKE AIR TEMPERATURE SENSOR.
NOTE:
For detailed operation procedures, refer to "Read Current Data For Engine". <Ref. to Subaru Select Monitor .>
For detailed operation procedures, refer to the general scan tool operation manual. |
Is the value in «Mani. Absolute Pressure» 73.3 - 106.6 kPa (550 - 800 mmHg, 21.65 - 31.50 inHg) when the ignition is turned ON, and 20.0 - 46.7 kPa (150 - 350 mmHg, 5.91 - 13.78 inHg) during idling? | Go to step 3 . | Replace the manifold absolute pressure and intake air temperature sensor. <Ref. to Manifold Absolute Pressure and Intake Air Temperature Sensor .> |
| 3 CHECK THROTTLE OPENING ANGLE. Using the Subaru Select Monitor or a general scan tool, read the value in «Throttle Opening Angle».
NOTE:
For detailed operation procedures, refer to "Read Current Data For Engine". <Ref. to Subaru Select Monitor .>
For detailed operation procedures, refer to the general scan tool operation manual. |
Is the value in «Throttle Opening Angle» with the throttle fully closed less than 5%? | Go to step 4 . | Replace the electronic throttle control. <Ref. to Throttle Body .> |
| 4 CHECK THROTTLE OPENING ANGLE. | Is the value in «Throttle Opening Angle» with the throttle fully open 85% or more? | Replace the manifold absolute pressure and intake air temperature sensor. <Ref. to Manifold Absolute Pressure and Intake Air Temperature Sensor .> | Replace the electronic throttle control. <Ref. to Throttle Body .> |