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Engine-Codes – Subaru – P1107 Subaru

P1107 Subaru Code - Air Injection System Diagnosis Solenoid Valve Circuit Malfunction

Quick Answer

The P1107 Subaru code indicates a malfunction in the Air Injection System Diagnosis Solenoid Valve Circuit. Common causes include Faulty solenoid valve, Damaged wiring or connectors in the circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1107 Subaru indicates Air Injection System Diagnosis Solenoid Valve Circuit Malfunction.
Common causes
Common causes include Faulty solenoid valve, Damaged wiring or connectors in the circuit, ECM malfunction.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1107 Subaru Description

The P1107 Subaru code indicates a malfunction in the Air Injection System Diagnosis Solenoid Valve Circuit. This system is responsible for injecting fresh air into the exhaust system to help reduce emissions. The solenoid valve controls the flow of air into the exhaust system, and when it malfunctions, it can lead to a variety of issues.

OBDII Code P1107 Subaru - Air Injection System Diagnosis Solenoid Valve Circuit Malfunction
P1107 Subaru Code - Air Injection System Diagnosis Solenoid Valve Circuit Malfunction

Common Causes of P1107 Subaru

  1. Faulty solenoid valve
  2. Damaged wiring or connectors in the circuit
  3. ECM malfunction
  4. Corrosion or debris blocking the air injection system

Symptoms of P1107 Subaru

  1. Rough engine idle
  2. Misfiring engine
  3. Reduced engine power
  4. Check Engine Light illuminated

How to Fix P1107 Subaru

  1. Use a diagnostic scanner to retrieve the trouble codes and pinpoint the issue.
  2. Inspect the solenoid valve, wiring, and connectors for any visible damage or corrosion.
  3. Test the solenoid valve for proper operation using a multimeter.
  4. Replace the solenoid valve if it is faulty, and repair any damaged wiring or connectors.
  5. Clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1107 Subaru

The typical repair costs for resolving a P1107 Subaru code can vary depending on the specific cause of the issue. In general, the cost of replacing a solenoid valve can range from $100 to $300, including parts and labor. Additional costs may be incurred if there are other components that need to be repaired or replaced. It is advisable to check with local auto repair shops for more accurate cost estimates based on the individual circumstances of the vehicle.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1107 Subaru Code

1. What does the OBDII code P1107 on a Subaru mean?

The P1107 code indicates a malfunction in the Air Injection System Diagnosis Solenoid Valve Circuit, which is part of the secondary air injection system.

2. What are the symptoms of code P1107 in a Subaru?

Common symptoms include an illuminated Check Engine Light, reduced engine performance, poor fuel efficiency, and potential difficulty passing emissions tests.

3. What causes the P1107 code in a Subaru?

Possible causes include a faulty solenoid valve, damaged or corroded wiring in the solenoid circuit, a malfunctioning air injection pump, or a failed ECM.

4. How do I diagnose the P1107 code in my Subaru?

Start by checking the solenoid valve and its electrical connections for damage or corrosion, inspect the air injection pump, and test for proper voltage and continuity in the solenoid circuit.

5. Can I drive my Subaru with the P1107 code?

While you may be able to drive it short-term, it’s not recommended due to the potential for increased emissions and reduced engine performance.

6. How is the P1107 code fixed in a Subaru?

Repairs may involve replacing the faulty solenoid valve, repairing damaged wiring or connectors, or in rare cases, replacing the ECM.

7. How much does it cost to fix the P1107 code in a Subaru?

Repair costs vary but typically range from $100 to $300, depending on whether the issue is with the solenoid valve, wiring, or other components.

8. What tools are needed to troubleshoot the P1107 code?

You’ll need a diagnostic scanner, a multimeter to check electrical connections, and possibly a service manual for your Subaru model.

9. Does the P1107 code affect emissions?

Yes, the P1107 code can cause increased emissions due to improper functioning of the secondary air injection system.

10. Can a dirty air filter cause the P1107 code in a Subaru?

No, a dirty air filter is unlikely to cause this code, as it specifically relates to the solenoid valve circuit in the air injection system.

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