Engine-CodesGeneric – P0487

P0487 Code - Exhaust Gas Recirculation Throttle Control Circuit 'A' Open

Quick Answer

The P0487 code indicates a problem with the Exhaust Gas Recirculation (EGR) Throttle Control Circuit 'A' being open. Common causes include Faulty EGR throttle control circuit, Damaged EGR valve, Wiring issues in the EGR system. 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
P0487 indicates Exhaust Gas Recirculation Throttle Control Circuit 'A' Open.
Common causes
Common causes include Faulty EGR throttle control circuit, Damaged EGR valve, Wiring issues in the EGR system.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P0487 Description

The P0487 code indicates a problem with the Exhaust Gas Recirculation (EGR) Throttle Control Circuit 'A' being open. The EGR system is an important component in a vehicle's emissions control system, as it helps reduce harmful emissions by recirculating a portion of the exhaust gases back into the engine cylinders for combustion. The throttle control circuit 'A' is responsible for regulating the flow of exhaust gases into the engine, and when it is open, it means that there is an issue with the circuit that controls this process.

OBDII Code P0487 - Exhaust Gas Recirculation Throttle Control Circuit 'A' Open
P0487 Code - Exhaust Gas Recirculation Throttle Control Circuit 'A' Open

Common Causes of P0487

  1. Faulty EGR throttle control circuit
  2. Damaged EGR valve
  3. Wiring issues in the EGR system
  4. Problem with the engine control module (ECM)

Symptoms of P0487

  1. Rough idling or misfiring engine
  2. Decreased power and acceleration
  3. Poor fuel efficiency
  4. Check Engine Light illuminated on the dashboard

How to Fix P0487

  1. Diagnose the specific cause of the code using a diagnostic scanner to pinpoint the issue within the EGR system.
  2. Inspect the EGR throttle control circuit for any damage or malfunction. Replace any faulty components as needed.
  3. Check the EGR valve for proper operation and replace if necessary.
  4. Inspect the wiring in the EGR system for any breaks or shorts, repairing or replacing as needed.
  5. Clear the diagnostic trouble codes from the vehicle's ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0487

The typical repair costs for addressing a P0487 code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $300. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle type, and the extent of the repairs needed. It's recommended to consult with a mechanic or auto repair shop to get a more precise estimate for this repair.

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Code P0487 Information for Specific Makes

  • P0487 Audi — Exhaust Gas Recirculation Throttle Control Circuit 'A' Open
  • P0487 Volkswagen — Exhaust Gas Recirculation Throttle Control Circuit 'A' Open
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.

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