AutoCodes – Acura – P0507 Acura

P0507 Acura Code - Idle Control System RPM Higher Than Expected

Quick Answer

A target idle speed that meets the engine operating conditions (coolant temperature, A/C ON or OFF, etc.) is stored in the Powertrain Control Module (PCM). Common causes include Throttle Body air leak, Intake manifold air leak, Intake air system air leak. 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 Throttle Body air leak, Intake manifold air leak, Intake air system air leak.
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.

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Code Popularity 21,596

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 23, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P0507 Acura Description

A target idle speed that meets the engine operating conditions (coolant temperature, A/C ON or OFF, etc.) is stored in the Powertrain Control Module (PCM). The PCM monitors and controls the idle speed so that the actual idle speed is equal to the target idle speed. If the actual idle speed varies beyond a specified value from the target speed over a certain period of time, the PCM detects a malfunction in the idle speed control system and stores a Diagnostic Trouble Code (DTC). The DTC will be set when the actual idle speed is 200 rpm greater than the target idle speed for at least 20 seconds.

OBDII Code P0507 Acura - Idle Control System RPM Higher Than Expected - AutoCodes.com — P0507 Acura Code - Idle Control System RPM Higher Than Expected

What does this mean?

What are the Possible Causes of the DTC P0507 Acura?

Throttle Body air leak
Intake manifold air leak
Intake air system air leak
Faulty Throttle Body

How to Fix the DTC P0507 Acura?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0507 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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.