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P1495 Subaru Code - EGR Signal Line 2 Circuit High

Quick Answer

The P1495 code for Subaru vehicles indicates a problem with the EGR (Exhaust Gas Recirculation) Signal Line 2 Circuit being detected as too high. Common causes include Faulty EGR Valve: The EGR valve may be stuck open or closed, causing irregularities in the EGR system, Wiring Issues: Damaged or corroded wiring in the EGR Signal Line 2 Circuit can lead to a high voltage signal being sent to the ECU, EGR Position Sensor Malfunction: A malfunctioning EGR position sensor can result in improper feedback to the ECU, triggering the P1495 code. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1495 Subaru indicates EGR Signal Line 2 Circuit High.
Common causes
Common causes include Faulty EGR Valve: The EGR valve may be stuck open or closed, causing irregularities in the EGR system, Wiring Issues: Damaged or corroded wiring in the EGR Signal Line 2 Circuit can lead to a high voltage signal being sent to the ECU, EGR Position Sensor Malfunction: A malfunctioning EGR position sensor can result in improper feedback to the ECU, triggering the P1495 code.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1495 Subaru Description

The P1495 code for Subaru vehicles indicates a problem with the EGR (Exhaust Gas Recirculation) Signal Line 2 Circuit being detected as too high. The EGR system is responsible for recirculating a small amount of exhaust gases back into the engine cylinders to reduce combustion temperatures and decrease harmful emissions. The EGR Signal Line 2 Circuit is a specific part of the EGR system that monitors and controls the flow of exhaust gases.

OBDII Code P1495 Subaru - EGR Signal Line 2 Circuit High
P1495 Subaru Code - EGR Signal Line 2 Circuit High

Common Causes of P1495 Subaru

  1. Faulty EGR Valve: The EGR valve may be stuck open or closed, causing irregularities in the EGR system.
  2. Wiring Issues: Damaged or corroded wiring in the EGR Signal Line 2 Circuit can lead to a high voltage signal being sent to the ECU.
  3. EGR Position Sensor Malfunction: A malfunctioning EGR position sensor can result in improper feedback to the ECU, triggering the P1495 code.
  4. Carbon Build-Up: Excessive carbon build-up in the EGR system can restrict the flow of exhaust gases, leading to high voltage readings.
  5. ECU Malfunction: In rare cases, a malfunctioning ECU could be incorrectly interpreting the signals from the EGR system, triggering the P1495 code.

Symptoms of P1495 Subaru

  1. Check Engine Light: The most common symptom associated with the P1495 code is the illumination of the Check Engine Light on the vehicle's dashboard.
  2. Reduced Engine Performance: The engine may experience a decrease in power and acceleration due to improper EGR function.
  3. Rough Idle: The vehicle may exhibit a rough idle or even stalling when the EGR system is not functioning correctly.
  4. Increased Fuel Consumption: A malfunctioning EGR system can lead to higher fuel consumption as the engine may not be operating at optimal efficiency.
  5. Failed Emissions Test: If the EGR system is not working properly, the vehicle may fail emissions tests due to increased emissions output.

How to Fix P1495 Subaru

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the specific fault code and pinpoint the exact cause of the problem.
  2. Inspect EGR System: Check the EGR valve, wiring, and position sensor for any signs of damage or malfunction.
  3. Clean or Replace EGR Valve: Clean the EGR valve to remove any carbon deposits or replace it if it is faulty.
  4. Repair Wiring: Repair or replace any damaged wiring in the EGR Signal Line 2 Circuit.
  5. Reset ECU: Clear the fault code from the ECU memory and reset the system to see if the issue has been resolved.

Cost to Fix P1495 Subaru

The cost of repairing a P1495 code on a Subaru vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs for this type of problem can range from $200 to $500, including parts and labor. Keep in mind that additional costs may apply if more extensive repairs are needed or if multiple components of the EGR system require attention. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.

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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 P1495 Subaru Code

1. What does the OBDII code P1495 mean on a Subaru?

P1495 indicates an issue with the EGR (Exhaust Gas Recirculation) Signal Line 2 Circuit, specifically a high voltage condition detected by the engine control module (ECM).

2. What are the common symptoms of P1495 on a Subaru?

Symptoms may include a check engine light, reduced fuel efficiency, rough idling, engine hesitation, or increased emissions.

3. What causes the P1495 code to appear on a Subaru?

Common causes include a faulty EGR valve, damaged wiring or connectors in the EGR circuit, carbon buildup in the EGR system, or a malfunctioning ECM.

4. Can I drive my Subaru with the P1495 code?

While the vehicle may still be drivable, ignoring the issue can lead to increased emissions, reduced performance, and potential engine damage over time.

5. How do I diagnose the P1495 code on a Subaru?

Start by inspecting the EGR valve, wiring, and connectors for damage or corrosion. Use a multimeter to test circuit voltage and continuity, and check for carbon buildup in the EGR passages.

6. How do I fix the P1495 code on a Subaru?

Repairs may involve cleaning or replacing the EGR valve, repairing damaged wiring, replacing corroded connectors, or updating/reprogramming the ECM if needed.

7. How much does it cost to fix the P1495 code on a Subaru?

Repair costs can vary. Cleaning the EGR system may cost around $100–$300, while replacing the EGR valve can cost $200–$600, depending on parts and labor.

8. Can a dirty EGR valve cause the P1495 code?

Yes, carbon buildup or a clogged EGR valve can restrict proper operation, leading to signal issues and triggering the P1495 code.

9. Will clearing the P1495 code fix the problem permanently?

Clearing the code may turn off the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.

10. Does the P1495 code affect emissions testing?

Yes, the P1495 code indicates an issue with the EGR system, which can lead to increased emissions and failure of emissions testing.

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