AutoCodes – Subaru – P0507 Subaru

P0507 Subaru Code - Idle Control System RPM Higher Than Expected

Quick Answer

The Engine Control Module (ECM) controls the engine idle speed to a specified level through the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. Common causes include Dirty throttle body, Electric throttle control actuator misadjusted or damaged, Faulty Electric throttle control actuator. 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 Subaru indicates Idle Control System RPM Higher Than Expected.
Common causes
Common causes include Dirty throttle body, Electric throttle control actuator misadjusted or damaged, Faulty Electric throttle control actuator.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 24,745
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0507 Subaru Description

The Engine Control Module (ECM) controls the engine idle speed to a specified level through the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is varied to allow for optimum control of the engine idling speed. The ECM calculates the actual engine speed from signals of crankshaft position sensor (POS) and camshaft position sensor.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily. The optimum value stored in the ECM is determined by taking into consideration various engine conditions, such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan operation, etc.)
OBDII Code P0507 Subaru - Idle Control System RPM Higher Than Expected - AutoCodes.com
P0507 Subaru Code - Idle Control System RPM Higher Than Expected

What are the Possible Causes of the DTC P0507 Subaru?

  • Dirty throttle body
  • Electric throttle control actuator misadjusted or damaged
  • Faulty Electric throttle control actuator
  • Intake air leak
  • Poor electrical connection to the Intake Air Control (IAC) valve

How to Fix the DTC P0507 Subaru?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0507 Subaru 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 Subaru 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.

Frequently Asked Questions about P0507 Subaru Code

What does OBDII code P0507 mean for a Subaru?

Code P0507 indicates that the engine's idle RPM is higher than the expected range, typically caused by issues with the idle control system or related components.

What are the common symptoms of code P0507 in a Subaru?

Symptoms may include a high idle RPM, rough idling, poor fuel economy, and possible stalling when coming to a stop.

What causes code P0507 in a Subaru?

Potential causes include a dirty throttle body, vacuum leaks, a malfunctioning idle air control valve, or software issues in the engine control module (ECM).

Can a vacuum leak trigger code P0507 in a Subaru?

Yes, a vacuum leak can allow extra air into the engine, leading to a higher idle RPM and triggering the P0507 code.

How can I fix code P0507 in a Subaru?

Start by cleaning the throttle body, inspecting for vacuum leaks, checking the idle air control valve, and updating ECM software if necessary.

Is it safe to drive a Subaru with code P0507?

Driving with code P0507 is generally safe in the short term, but ignoring it could lead to poor performance or damage to engine components over time.

How do I diagnose code P0507 in a Subaru?

Use an OBDII scanner to confirm the code, then inspect the throttle body, vacuum lines, and idle air control valve for damage or contamination.

Can a dirty throttle body cause code P0507 in a Subaru?

Yes, a dirty throttle body can restrict airflow and interfere with idle control, potentially causing the P0507 code.

Does a faulty idle air control valve cause code P0507 in a Subaru?

Yes, a malfunctioning idle air control valve can fail to regulate idle RPM properly, triggering code P0507.

Will resetting the ECM fix code P0507 in a Subaru?

Resetting the ECM may clear the code temporarily, but the underlying issue must be addressed to prevent the code from returning.

Discuss the causes and fixes for P0507 Subaru OBDII Code

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