Subaru Car 1998-05

3.0L H6 - Auto 1

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3.0L H6 - Auto

Trouble Code: P0011



Intake Camshaft Position Timing (Over Advanced) Bank 1

Possible Causes:



Check any other DTC on display
 
Using a scan tool, check current data. Check AVCS system.
 
Oil pipe clog
 
Clogged oil flow control solenoid valve
 
Intake camshaft damaged
 
Timing chain problem
 

Trouble Code: P0016



Crankshaft Position (Camshaft Position Correlation) Bank 1

Possible Causes:



Check any other DTC on display
 
Using a scan tool, check current data. Check AVCS system.
 
Oil pipe clog
 
Clogged oil flow control solenoid valve
 
Intake camshaft damaged
 
Timing chain problem
 

Trouble Code: P0018



Crankshaft Position (Camshaft Position Correlation) Bank 2

Possible Causes:



Check any other DTC on display
 
Using a scan tool, check current data. Check AVCS system.
 
Oil pipe clog
 
Clogged oil flow control solenoid valve
 
Intake camshaft damaged
 
Timing chain problem
 

Trouble Code: P0021



Intake Camshaft Position Timing (Over Advanced) Bank 2

Possible Causes:



Check any other DTC on display
 
Using a scan tool, check current data. Check AVCS system.
 
Oil pipe clog
 
Clogged oil flow control solenoid valve
 
Dirty engine oil
 
Intake camshaft damaged
 
Timing chain problem
 

Trouble Code: P0026



Intake Valve Control Solenoid Circuit Range/Performance Bank 1

Possible Causes:



Check any other DTC on display
 
Check harness between ECM and variable valve lift diagnosis oil pressure switch connector
 
Check harness between ECM and variable valve lift diagnosis oil pressure switch connector
 
Check oil switching solenoid valve
 

Trouble Code: P0028



Intake Valve Control Solenoid Circuit Range/Performance Bank 2

Possible Causes:



Check any other DTC on display
 
Check harness between ECM and variable valve lift diagnosis oil pressure switch connector
 
Check harness between ECM and variable valve lift diagnosis oil pressure switch connector
 
Check oil switching solenoid valve
 

Trouble Code: P0030



HO2S Heater Control Circuit Bank 1 Sensor 1

Possible Causes:



Check harness between ECM and front oxygen sensor connector
 
Check harness between main relay and front oxygen sensor connector
 
Check front oxygen sensor
 
Check poor contact
 

Trouble Code: P0031



HO2S Heater Control Circuit Low Bank 1 Sensor 1

Possible Causes:



Check power supply to front oxygen sensor
 
Check ground circuit for ECM
 
Using a scan tool check current data
 
Check output signal of ECM
 
Check front oxygen sensor
 

Trouble Code: P0032



HO2S Heater Control Circuit High Bank 1 Sensor 1

Possible Causes:



Check output signal of ECM
 
Check front oxygen sensor heater current
 
Check output signal of ECM
 

Trouble Code: P0037



HO2S Heater Control Circuit Low Bank 1 Sensor 2

Possible Causes:



Check power supply to rear oxygen sensor
 
Check ground circuit for ECM
 
Using a scan tool check current data
 
Check output signal of ECM
 
Check rear oxygen sensor
 

Trouble Code: P0038



HO2S Heater Control Circuit High Bank 1 Sensor 2

Possible Causes:



Check input signal of ECM
 
Using a scan tool check current data
 
Check poor contact
 

Trouble Code: P0050



HO2S Heater Control Circuit Bank 2 Sensor 1

Possible Causes:



Check harness between ECM and front oxygen sensor connector
 
Check harness between main relay and front oxygen sensor connector
 
Check front oxygen sensor
 
Check poor contact
 

Trouble Code: P0051



HO2S Heater Control Circuit Low Bank 2 Sensor 1

Possible Causes:



Check power supply to front oxygen sensor
 
Check ground circuit for ECM
 
Using a scan tool check current data
 
Check output signal of ECM
 
Check front oxygen sensor
 

Trouble Code: P0052



HO2S Heater Control Circuit High Bank 2 Sensor 1

Possible Causes:



Check output signal of ECM
 
Check front oxygen sensor heater current
 
Check output signal of ECM
 

Trouble Code: P0057



HO2S Heater Control Circuit Low Bank 2 Sensor 2

Possible Causes:



Check power supply to rear oxygen sensor
 
Check ground circuit for ECM
 
Using a scan tool check current data
 
Check output signal of ECM
 
Check rear oxygen sensor
 

Trouble Code: P0058



HO2S Heater Control Circuit High Bank 2 Sensor 2

Possible Causes:



Check input signal of ECM
 
Using a scan tool check current data
 
Check poor contact
 

Trouble Code: P0068



MAP/MAF- Throttle Position Correlation

Possible Causes:



Check idle switch signal
 
Check any other DTC on display
 
Check condition of the sensor
 
Check condition of the throttle body
 

Trouble Code: P0076



Intake valve Control Circuit Low Bank 1

Possible Causes:



Check harness between ECM and oil switching solenoid valve
 
Check oil switching solenoid valve
 

Trouble Code: P0077



Intake valve Control Circuit High Bank 1

Possible Causes:



Check harness between ECM and oil switching solenoid valve
 
Check oil switching solenoid valve
 

Trouble Code: P0082



Intake valve Control Circuit Low Bank 2

Possible Causes:



Check harness between ECM and oil switching solenoid valve
 
Check oil switching solenoid valve
 

Trouble Code: P0083



Intake valve Control Circuit High Bank 2

Possible Causes:



Check harness between ECM and oil switching solenoid valve
 
Check oil switching solenoid valve
 

Trouble Code: P0101



Mass or Volume Air Flow Circuit Range/Performance

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0102



Mass or Volume Air Flow Circuit Low Input

Possible Causes:



Using a scan tool, check current data
 
Check input signal of ECM
 
Check power supply to sensor
 
Check harness between ECM and sensor connector
 
Check poor contact
 

Trouble Code: P0103



Mass or Volume Air Flow Circuit High Input

Possible Causes:



Using a scan tool, check current data
 
Check harness between ECM and sensor connector
 

Trouble Code: P0106



Pressure Sensor Circuit Range/Performance

Possible Causes:



Check any other DTC on display
 
Check air intake system
 
Check pressure sensor
 
Check throttle position
 

Trouble Code: P0107



Manifold Absolute pressure/Barometric Pressure Circuit Low Input

Possible Causes:



Using a scan tool, check current data
 
Check poor contact
 
Check output signal of ECM
 
Check input signal of ECM
 
Check harness between ECM and sensor connector
 

Trouble Code: P0108



Manifold Absolute pressure/Barometric Pressure Circuit Low Input

Possible Causes:



Check output signal of ECM
 
Check input signal of ECM
 
Check harness between ECM and sensor connector
 
Check harness between the sensor connector
 
Check poor contact
 

Trouble Code: P0111



Intake Air Temperature Circuit Range/Performance

Possible Causes:



Check any other DTC on display
 
Check engine coolant temperature
 

Trouble Code: P0112



Intake Air Temperature Circuit Low Input

Possible Causes:



Using a scan tool, check current data
 
Check the harness between the sensor and the ECM connector
 

Trouble Code: P0113



Intake Air Temperature Circuit high Input

Possible Causes:



Using a scan tool, check current data
 
Check the harness between the sensor and the ECM connector
 

Trouble Code: P0117



Engine Coolant Temperature Sensor Circuit Low Input

Possible Causes:



Using a scan tool, check current data
 
Check harness between sensor and ECM connector
 

Trouble Code: P0118



Engine Coolant Temperature Sensor Circuit High Input

Possible Causes:



Using a scan tool, check current data
 
Check harness between sensor and ECM connector
 

Trouble Code: P0122



Throttle/Pedal Position Sensor/Switch -A- Circuit Low Input

Possible Causes:



Check sensor output
 
Check poor contact
 
Check harness between ECM and electronic throttle control (if equipped)
 

Trouble Code: P0123



Throttle/Pedal Position Sensor/Switch -A- Circuit Low Input

Possible Causes:



Check sensor output
 
Check poor contact
 
Check harness between ECM and electronic throttle control (if equipped)
 

Trouble Code: P0125



Insufficient Coolant Temperature For Closed loop Fuel Control

Possible Causes:



Check any other DTC on display
 
Check tire size
 
Check engine coolant
 
Check thermostat
 

Trouble Code: P0126



Insufficient Coolant Temperature For Stable Operation

Possible Causes:



Check any other DTC on display
 
Check engine coolant temperature sensor
 

Trouble Code: P0128



Coolant Temperature Thermostat (coolant temperature below thermostat regulating temperature)

Possible Causes:



Check vehicle
 
Check any other DTC on display
 
Check engine coolant
 
Check radiator fan
 

Trouble Code: P0129



Barometric Pressure Too Low

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0130



O2 Sensor Circuit Bank 1 Sensor 1

Possible Causes:



Check any other DTC on display
 
Using a scan tool, check current data
 
Check harness between ECM and sensor
 
Check exhaust system
 

Trouble Code: P0131



O2 Sensor Circuit Low Voltage Bank 1 Sensor 1

Possible Causes:



Check harness between ECM and sensor
 

 
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