DTC P0068: Map/MAF - Throttle Position Correlation: Notes
1. -
DTC detecting condition:
Detected when two consecutive driving cycles with fault occur.
After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .
- CHECK AIR INTAKE SYSTEM
.
Check the installing condition of the air intake system.
Are there holes, loose bolts or disconnection of hose on air intake system?
Yes : Repair the air intake system. Ref. to INTAKE (INDUCTION) (H4DO)>GENERAL DESCRIPTION .
No : Go to 2 .
- CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR
.
- Start the engine and warm up until the engine coolant temperature exceeds 75°C (167°F).
- Place the select lever in "P" range or "N" range.
- Turn the A/C switch to OFF.
- Turn all the accessory switches to OFF.
- Using the Subaru Select Monitor, read the value in [Mani. Absolute Pressure].NOTE:
For detailed operation procedures, refer to "Common (Diagnostics)". Ref. to COMMON (DIAG)>DATA MONITOR .
Is the value of [Mani. Absolute Pressure] 73.3 - 106.6 [kPa] (550 - 800 mmHg, 21.6 - 31.5 inHg, 10.6 - 15.5 psi) at ignition ON, and 20 - 46.7 [kPa] (150 - 350 mmHg, 5.91 - 13.79 inHg, 2.9 - 6.8 psi) at idling?
Yes : Repair the poor contact of ECM connector.
No : Replace the manifold absolute pressure sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>MANIFOLD ABSOLUTE PRESSURE SENSOR .