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 ENGINE (DIAGNOSTICS) (H6DO)>CLEAR MEMORY MODE>OPERATION
., and inspection mode
Ref. to ENGINE (DIAGNOSTICS) (H6DO)>INSPECTION MODE>PROCEDURE
.
- CHECK AIR INTAKE SYSTEM.
Check the air intake system.
Are there holes, loose bolts or disconnection of hose on air intake system?
Yes Repair the air intake system.
No Go to 2 .
- CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR.
- Start the engine and warm up engine until coolant temperature is higher than 75°C (167°F).
- Place the select lever in "P" range or "range".
- Turn the A/C switch to OFF.
- Turn all the accessory switches to OFF.
- Read the value of <<Mani. Absolute Pressure> using the Subaru Select Monitor or a general scan tool.
NOTE:
- Subaru Select Monitor For detailed operation procedures, refer to "Current Data Display For Engine". Ref. to ENGINE (DIAGNOSTICS) (H6DO)>SUBARU SELECT MONITOR .
- General scan tool 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?
Yes Repair the poor contact of ECM connector.
Yes Replace the manifold absolute pressure sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H6DO)>MANIFOLD ABSOLUTE PRESSURE SENSOR .