DTC P0011 "A" Camshaft Position - Timing Over-Advanced Or System Performance Bank 1: Notes

DTC detecting condition: 

Detected when two consecutive driving cycles with fault occur.

Trouble symptom: 

• Engine stalls.
• Improper idling

1. IDENTIFYING FAULTY PART. 
   1. Clear the memory. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Clear Memory Mode .
   2. Replace the defective oil control solenoid by the other (RH or LH, intake side or exhaust side) oil control solenoid. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Oil Control Solenoid .
   3. Perform appropriate drive cycle test. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Drive Cycle .
   4. Check that the fault occurrence (DTC and incorrect advancing) has shifted to the other location.

   Did the detected DTC shift to the location where the oil control solenoid was replaced?

   • Yes: Replace the faulty oil control solenoid. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Oil Control Solenoid .
   • No: Go to 2. 
2. CHECK DATA MONITOR. 
   1. Start the engine and let it idle.
   2. Using the Subaru Select Monitor, read the value in [VVT Adv. Ang. Amount R].
   NOTE: For detailed procedures, refer to "Data Monitor". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Subaru Select Monitor .

   Is the value of [VVT Adv. Ang. Amount R] approx. 0 deg?

   • Yes: Go to 3. 
   • No: Check the following item and repair or replace if necessary.
     • Intake cam sprocket (clog or dirt of oil routing, setting of spring)
     • Intake camshaft (dirt, damage of camshaft)
3. CHECK DATA MONITOR. 

1. 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.
2. Using the Subaru Select Monitor, read the values in OCV Duty R and [VVT Adv. Ang. Amount R].
   NOTE: For detailed procedures, refer to "Data Monitor". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Subaru Select Monitor .

   When the value of [OCV Duty R] increases from 10%, is the value of [VVT Adv. Ang. Amount R] approx. 0 deg?

   • Yes: Check the following item and repair or replace if necessary.
     • Intake cam sprocket (clog or dirt of oil routing, setting of spring)
     • Intake camshaft (dirt, damage of camshaft)
   • No: 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. Ref. to LUBRICATION(H4DO)>Engine Oil>REPLACEMENT . Ref. to LUBRICATION(H4DO)>Engine Oil Filter .