AutoCodes – Ford – P1507 2007 Ford Fusion

P1507 2007 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 2007 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 4,912

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 2007 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 2007 Ford Fusion - Idle Air Control Under Speed Error - AutoCodes.com — P1507 2007 Ford Fusion Code - Idle Air Control Under Speed Error

What does this mean?

What are the Possible Causes of the DTC P1507 2007 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 2007 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 2007 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 2007 Ford Fusion Code

1. What does the OBDII code P1507 on a 2007 Ford Fusion mean?

The P1507 code indicates an Idle Air Control Under Speed Error, signaling an issue with the idle control system.

2. What are the common symptoms of OBDII code P1507 on a 2007 Ford Fusion?

Common symptoms include rough idle, stalling at idle, fluctuating idle speed, and potential engine performance issues.

3. What are the possible causes of OBDII code P1507 on a 2007 Ford Fusion?

Potential causes of the P1507 code include a faulty idle air control valve, vacuum leaks, dirty throttle body, or issues with the engine's air intake system.

4. How can I diagnose the OBDII code P1507 on my 2007 Ford Fusion?

Diagnosis typically involves checking for vacuum leaks, inspecting the idle air control valve, cleaning the throttle body, and ensuring proper operation of the engine's air intake components.

5. Can I continue driving my 2007 Ford Fusion with the P1507 code?

It is not recommended to continue driving with the P1507 code present, as it can lead to potential engine performance issues and may cause further damage if left unresolved.

6. How can I repair the OBDII code P1507 on my 2007 Ford Fusion?

Repair options may include replacing the idle air control valve, fixing any vacuum leaks, cleaning the throttle body, and ensuring all components of the air intake system are functioning properly.

7. Is it possible to reset the OBDII code P1507 on a 2007 Ford Fusion without repairing the issue?

While clearing the code may temporarily turn off the check engine light, it will not fix the underlying problem causing the P1507 code to trigger.

8. Will the OBDII code P1507 on a 2007 Ford Fusion cause poor fuel efficiency?

Yes, the P1507 code can lead to poor fuel efficiency due to irregular engine idling and potential performance issues affecting overall vehicle operation.

9. How much does it typically cost to repair the OBDII code P1507 on a 2007 Ford Fusion?

The cost of repair can vary depending on the specific issue causing the P1507 code, but it may range from $100 to $300 or more, including parts and labor.

10. Can a DIY enthusiast with basic automotive knowledge fix the OBDII code P1507 on a 2007 Ford Fusion?

Depending on the root cause, some DIY enthusiasts may be able to address the P1507 code by cleaning components like the throttle body or replacing the idle air control valve, while more complex issues may require professional assistance.