In the United States, fixing P0507 typically costs between roughly $180 and $1,000 or more, depending on the underlying issue. Most cars see costs around $300–$500 for common fixes like cleaning the idle air control valve or replacing vacuum hoses; more extensive problems can push the bill higher.
The P0507 code means the idle control system is producing idle RPM higher than the engine's target. Diagnosis starts with a diagnostic scan, live data checks, and a physical inspection of idle components. Costs will include both labor and parts and vary by vehicle and region.
What P0507 means
The P0507 diagnostic trouble code indicates the engine is idling higher than its programmed idle speed. This can cause a rough idle, stalling symptoms, and other related codes. Common triggers include a dirty or failing idle air control valve, a dirty throttle body, vacuum leaks, or faulty sensors that misread airflow.
Common causes
The following items are among the most frequent culprits behind a P0507. Diagnosing usually involves inspecting these components and testing related sensors.
- Vacuum leaks (vacuum hoses, PCV system, intake manifold gaskets)
- Dirty or failing idle air control valve (IAC) or throttle body
- Faulty or dirty mass air flow (MAF) sensor or manifold absolute pressure (MAP) sensor
- Throttle body sticking or maladjusted throttle position sensor
- Vacuum leaks from EGR system or PCV valve malfunctions (less common but possible)
Addressing the underlying cause often reduces idle RPM to normal and may resolve the code without further repairs.
Typical repair costs
Costs shown reflect common scenarios for U.S. vehicles and include diagnosis, parts, and labor. Prices vary by vehicle, location, and shop.
- Diagnostic fee: typically $80–$120
- Idle air control valve (IAC) replacement: about $180–$350 total (parts ~$50–$150; labor ~$130–$200)
- Throttle body cleaning or refurbishment: about $130–$260 total
- Vacuum leak repair (hoses, PCV valve, gaskets): about $150–$400
- MAP sensor replacement: about $170–$360
- MAF sensor replacement: about $250–$550
- PCV valve replacement: about $60–$150 total
- Throttle body replacement: about $300–$900
Given the wide range, many shops will quote multiple options depending on diagnostic findings. A simple fix such as cleaning a throttle body or replacing hoses may be sufficient in many cases, but broader sensor or valve failures can push costs higher.
What to expect at the shop
When you bring a car with P0507 to a shop, expect a diagnostic process that includes an initial scan, live data monitoring of idle speed, and a physical inspection of idle-control components. The mechanic may perform a smoke test to locate vacuum leaks and run tests on sensors and actuators. After identifying the root cause, you will receive a repair plan and a price estimate.
Summary
P0507, indicating idle control system RPM higher than normal, is a common but variable fault. Costs to fix depend on whether the issue is a simple vacuum leak or a faulty IAC valve, sensor, or throttle body. In the U.S., the typical total ranges from roughly $180 to $1,000+, with many straightforward repairs falling in the $300–$500 range. Always obtain a written diagnostic and price quote with repair options before authorizing work.