DTC P0014 Exhaust AVCS System 1 (Range/Performance): Trouble Symptom

Engine stalls.
Improper idling

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Refer to OPERATION , Clear Memory Mode, and Inspection Mode Refer to PROCEDURE , Inspection Mode.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK CURRENT DATA. Start the engine and let it idle. Read the value of «Exh. VVT Retard Ang. R» using the Subaru Select Monitor. NOTE: For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". Refer to SUBARU SELECT MONITOR	Is the value of «Exh. VVT Retard Ang. R» approx. 0 deg?	Go to step 2 .	Check the following item and repair or replace if necessary. Oil pipe (clog) Oil flow control solenoid valve (clog or dirt of oil routing, setting of spring) Exhaust camshaft (dirt, damage of camshaft)
2 CHECK CURRENT DATA. Drive with acceleration and deceleration at 80 km/h (50 MPH) or less. NOTE: Drive to an extent that the duty output of oil flow control solenoid valve increases. Read the values of «Exh. OCV Duty R» and «Exh. VVT Retard Ang. R» using the Subaru Select Monitor. NOTE: For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". Refer to SUBARU SELECT MONITOR	When the value of «Exh. OCV Duty R» increases more than 10%, is the value of «Exh. VVT Retard Ang. R» approx. 0 deg?	Check the following item and repair or replace if necessary. Oil pipe (clog) Oil flow control solenoid valve (clog or dirt of oil routing, setting of spring) Exhaust camshaft (dirt, damage of camshaft)	Perform the following procedures, and clean the oil routing. Replace the engine oil and idle the engine for 5 minutes, and then replace the oil filter and engine oil. Refer to REPLACEMENT , Engine Oil. Refer to ENGINE OIL FILTER