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P0507 Acura Code - Idle Control System RPM Higher Than Expected

Quick Answer

The P0507 diagnostic trouble code for Acura vehicles indicates that the idle control system's RPM (revolutions per minute) is higher than expected. Common causes include Dirty or faulty throttle body, Vacuum leaks in the intake system, Malfunctioning idle air control valve. 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
P0507 Acura indicates Idle Control System RPM Higher Than Expected.
Common causes
Common causes include Dirty or faulty throttle body, Vacuum leaks in the intake system, Malfunctioning idle air control valve.
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 09, 2024
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Code P0507 Acura Description

The P0507 diagnostic trouble code for Acura vehicles indicates that the idle control system's RPM (revolutions per minute) is higher than expected. This means that the engine is idling at a speed that is above the normal range, which can lead to various performance issues. The idle control system is responsible for maintaining a steady and consistent idle speed when the vehicle is stationary. When the RPM is higher than expected, it can result in poor fuel efficiency, rough idling, and potential stalling of the engine.

OBDII Code P0507 Acura - Idle Control System RPM Higher Than Expected
P0507 Acura Code - Idle Control System RPM Higher Than Expected

Common Causes of P0507 Acura

  1. Dirty or faulty throttle body.
  2. Vacuum leaks in the intake system.
  3. Malfunctioning idle air control valve.
  4. Faulty engine control module.
  5. Incorrectly adjusted throttle position sensor.

Symptoms of P0507 Acura

  1. High idle speed when the vehicle is stationary.
  2. Rough idling or vibrations when the engine is running.
  3. Decreased fuel efficiency.
  4. Engine stalling or hesitation during acceleration.
  5. Illumination of the check engine light on the dashboard.

How to Fix P0507 Acura

  1. Perform a thorough inspection of the throttle body and clean or replace it if necessary.
  2. Check for vacuum leaks in the intake system and repair any leaks found.
  3. Test the idle air control valve for proper functioning and replace it if needed.
  4. Inspect the engine control module for any faults or errors and reprogram or replace it as required.
  5. Adjust the throttle position sensor to ensure it is providing accurate readings to the engine control module.

Cost to Fix P0507 Acura

The cost of repairing a P0507 code on an Acura vehicle can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may be higher or lower based on the severity of the problem and the extent of the repairs needed. It is recommended to obtain a detailed estimate from a trusted auto repair shop to determine the exact cost of addressing the high idle RPM issue.

What does this mean?

Tech Notes for P0507 Acura

If there are no intake leaks, clean the throttle body, adjust the engine idle, and erase the engine code. If the code comes back, you may have to replace the Throttle Body to repair the problem.



There is a factory service bulletin for the following Acura Models:



- 2013-2014 Acura ILX

- 2003-2013 Acura MDX

- 2007-2013 Acura RDX

- 2005-2012 Acura RL

- 2014 Acura RLX

- 2004-2013 Acura TL

- 2004-2013 Acura TSX

- 2010-2012 Acura ZDX



Just cleaned or replaced the throttle body and now you've got one or more of these symptoms?



- Fluctuating idle

- MIL on with DTC P2279 (intake air system leak)

- MIL on with P0507 (idle control system RPM higher than expected)



What's probably happened is the throttle plate is now in a different position from the one the ECM/PCM had learned.



To fix this problem, the ECM/PCM has to relearn the current closed throttle position.



1. Make sure all electrical items (A/C, audio unit, defogger, lights, etc.) are off.

2. Start the engine with the shift lever in P, parking brake on, and hold the engine speed at 3,000 rpm until the radiator fan comes on.

3. Let the engine idle for 10 minutes with the throttle fully closed.

Need more information about the P0507 Acura code?

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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.

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