AutoCodes – Ford – P1507 2010 Ford Fusion

P1507 2010 Ford Fusion Code - Idle Air Control Under Speed Error

Quick Answer

The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. Common causes include Faulty Idle Air Control (IAC) valve, IAC valve stuck closed, IAC valve harness is open or shorted. 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: P1507 2010 Ford Fusion indicates Idle Air Control Under Speed Error.
Common causes: Common causes include Faulty Idle Air Control (IAC) valve, IAC valve stuck closed, IAC valve harness is open or shorted.
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 5,995

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 Aug 25, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1507 2010 Ford Fusion Description

The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. The IAC valve assembly meters intake air around the throttle plate through a bypass within the IAC valve assembly and throttle body. The Powertrain Control Module (PCM) determines the desired idle speed or bypass air and signals the IAC valve assembly through a specified duty cycle. The IAC valve responds by positioning the IAC valve to control the amount of bypassed air. The PCM monitors engine RPM and increases or decreases the IAC duty cycle in order to achieve the desired RPM.

OBDII Code P1507 2010 Ford Fusion - Idle Air Control Under Speed Error - AutoCodes.com — P1507 2010 Ford Fusion Code - Idle Air Control Under Speed Error

What does this mean?

What are the Possible Causes of the DTC P1507 2010 Ford Fusion?

Faulty Idle Air Control (IAC) valve
IAC valve stuck closed
IAC valve harness is open or shorted
IAC valve circuit poor electrical connection

How to Fix the DTC P1507 2010 Ford Fusion?

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

The P1507 code means that the engine idle is out of factory specification. Sometimes the Idle Air Control (IAC) may have carbon built up. Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle relearned.
If the problem persistss, the IAC valve may need to be replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1507 2010 Ford Fusion 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.

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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 P1507 2010 Ford Fusion Code

1. What does OBDII code P1507 on a 2010 Ford Fusion mean?

The P1507 code indicates an Idle Air Control Under Speed Error, which means the engine's idle speed is lower than expected.

2. What are the common symptoms of a P1507 code in a 2010 Ford Fusion?

Common symptoms include rough idle, stalling at idle, poor acceleration, and possible engine misfires.

3. What are the possible causes of a P1507 code in a 2010 Ford Fusion?

Potential causes include a faulty idle air control valve, vacuum leaks, dirty throttle body, malfunctioning mass airflow sensor, or issues with the engine's fuel system.

4. How can I diagnose the source of a P1507 code on my 2010 Ford Fusion?

Diagnosing the issue may involve inspecting the idle air control valve, checking for vacuum leaks, cleaning the throttle body, testing the mass airflow sensor, and ensuring proper fuel system operation.

5. Can I drive my 2010 Ford Fusion with a P1507 code?

While it may be possible to drive with a P1507 code, it is not recommended as it can lead to engine performance issues and potential damage if left unresolved.

6. How do I repair a P1507 code on a 2010 Ford Fusion?

Repairing a P1507 code may involve cleaning or replacing the idle air control valve, fixing any vacuum leaks, cleaning the throttle body, replacing the mass airflow sensor, or addressing any fuel system problems.

7. Will resetting the OBDII code clear the P1507 code on my 2010 Ford Fusion?

Resetting the code may temporarily turn off the check engine light, but the underlying issue causing the P1507 code will likely need to be addressed for a permanent fix.

8. Can a DIY enthusiast fix a P1507 code on a 2010 Ford Fusion?

Depending on their skill level, a DIY enthusiast may be able to diagnose and address some of the common causes of a P1507 code, such as cleaning the throttle body or replacing the idle air control valve.

9. How much does it cost to repair a P1507 code on a 2010 Ford Fusion?

The cost of repairing a P1507 code can vary depending on the underlying issue, parts needed, and labor costs. It is recommended to get a diagnostic from a mechanic for an accurate estimate.

10. What is the importance of addressing a P1507 code promptly in a 2010 Ford Fusion?

Addressing a P1507 code promptly is important to ensure optimal engine performance, fuel efficiency, and to prevent potential damage to other engine components over time.