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Engine-Codes – Generic – P1655

P1655 Code - EVAP Purge Solenoid Control Circuit

Quick Answer

The P1655 code indicates a problem with the EVAP (Evaporative Emission Control System) purge solenoid control circuit. Common causes include Faulty Purge Solenoid: The purge solenoid itself may be defective and not functioning properly, Wiring Issues: Corroded, damaged, or loose wiring or connectors in the EVAP purge solenoid control circuit can trigger this code, PCM Malfunction: A malfunctioning PCM can incorrectly trigger the P1655 code. 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
P1655 indicates EVAP Purge Solenoid Control Circuit.
Common causes
Common causes include Faulty Purge Solenoid: The purge solenoid itself may be defective and not functioning properly, Wiring Issues: Corroded, damaged, or loose wiring or connectors in the EVAP purge solenoid control circuit can trigger this code, PCM Malfunction: A malfunctioning PCM can incorrectly trigger the P1655 code.
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 Aug 18, 2024
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Code P1655 Description

The P1655 code indicates a problem with the EVAP (Evaporative Emission Control System) purge solenoid control circuit. This solenoid is responsible for controlling the flow of fuel vapors from the charcoal canister to the engine intake manifold. When the PCM (Powertrain Control Module) detects an issue with the circuit, it triggers the P1655 code. This can lead to increased emissions, reduced fuel efficiency, and potential engine performance issues.

OBDII Code P1655 - EVAP Purge Solenoid Control Circuit
P1655 Code - EVAP Purge Solenoid Control Circuit

Common Causes of P1655

  1. Faulty Purge Solenoid: The purge solenoid itself may be defective and not functioning properly.
  2. Wiring Issues: Corroded, damaged, or loose wiring or connectors in the EVAP purge solenoid control circuit can trigger this code.
  3. PCM Malfunction: A malfunctioning PCM can incorrectly trigger the P1655 code.
  4. Vacuum Leaks: Any vacuum leaks in the EVAP system can cause issues with the purge solenoid control circuit.
  5. Charcoal Canister Issues: Problems with the charcoal canister can also lead to the P1655 code.

Symptoms of P1655

  1. Check Engine Light: The most common symptom associated with the P1655 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Rough Idle: A faulty EVAP purge solenoid control circuit can cause the engine to idle roughly or inconsistently.
  3. Reduced Fuel Efficiency: The vehicle may experience decreased fuel efficiency due to improper fuel vapor control.
  4. Engine Stalling: In severe cases, the engine may stall or hesitate during acceleration.
  5. Increased Emissions: The vehicle may fail emissions tests due to increased emissions caused by the malfunctioning EVAP system.

How to Fix P1655

  1. Diagnose the Issue: Use a scan tool to retrieve the stored code and perform further diagnostics to pinpoint the exact cause of the problem.
  2. Inspect Wiring and Connections: Check the wiring and connectors in the EVAP purge solenoid control circuit for any damage, corrosion, or loose connections.
  3. Test Purge Solenoid: Test the purge solenoid to ensure it is functioning properly. Replace if necessary.
  4. Repair Vacuum Leaks: Address any vacuum leaks in the EVAP system to ensure proper operation.
  5. Clear Codes and Test Drive: Clear the code from the PCM memory, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1655

The cost of repairing the EVAP Purge Solenoid Control Circuit issue can vary depending on the specific cause of the problem and the make and model of the vehicle. Generally, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost can be anywhere from $150 to $500. It's important to note that labor rates at different auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to find the best price.

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Code P1655 Information for Specific Makes

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 P1655 Code

1. What are common symptoms of OBDII code P1655 (EVAP Purge Solenoid Control Circuit)?

- Common symptoms include check engine light illumination, rough idle, stalling, and decreased fuel efficiency.

2. What are possible causes of OBDII code P1655?

- Possible causes include a faulty EVAP purge solenoid, damaged wiring or connectors in the control circuit, or a malfunctioning PCM.

3. How can I diagnose the cause of OBDII code P1655?

- To diagnose P1655, you can use a scan tool to check the code, visually inspect the EVAP purge solenoid and its wiring, and perform electrical tests to check for proper voltage and continuity.

4. Can I still drive my vehicle with OBDII code P1655?

- It is not recommended to drive your vehicle with code P1655 since it can lead to performance issues and potentially cause further damage to the emissions control system.

5. How do I repair OBDII code P1655?

- Repair options include replacing the EVAP purge solenoid, repairing or replacing damaged wiring or connectors, and resetting the fault code with a scan tool after the repair is completed.

6. What are the potential consequences of ignoring OBDII code P1655?

- Ignoring code P1655 can lead to increased emissions, decreased fuel efficiency, potential damage to the catalytic converter, and may cause your vehicle to fail an emissions test.

7. Can a DIY enthusiast fix OBDII code P1655 at home?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to fix code P1655 at home by following repair guides and using basic electrical testing equipment.

8. How long does it typically take to repair OBDII code P1655?

- The repair time for code P1655 can vary depending on the exact cause and the repair process involved, but it may take anywhere from 30 minutes to a few hours to complete.

9. Are there preventative measures to avoid OBDII code P1655 in the future?

- Regularly inspecting the EVAP system components, performing routine maintenance checks, and addressing any issues promptly can help prevent code P1655 from occurring in the future.

10. Is it necessary to clear the code after repairing OBDII code P1655?

- Yes, it is essential to clear the fault code with a scan tool after repairing code P1655 to reset the check engine light and ensure that the repair was successful.

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