AutoCodes – Ford – P2258 2008 Ford Fusion

P2258 2008 Ford Fusion Code - Secondary Air Injection System Control 'A' Circuit High

Quick Answer

An Air Pump is used on the vehicle to lower tail pipe emissions on start-up. Common causes include Faulty Secondary Air System Relay, Secondary Air System Relay harness is open or shorted, Secondary Air System Relay circuit poor electrical connection. 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: P2258 2008 Ford Fusion indicates Secondary Air Injection System Control 'A' Circuit High.
Common causes: Common causes include Faulty Secondary Air System Relay, Secondary Air System Relay harness is open or shorted, Secondary Air System Relay circuit poor electrical connection.
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 9,977

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P2258 2008 Ford Fusion Description

An Air Pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air Pump Relay Control Circuit which energizes the Air Pump. The PCM also grounds the Air Combination Valve Vacuum Control Solenoid Circuit, which energizes the Air Vacuum Control Solenoid. Vacuum is then applied to both Air Combination Valve Diaphragms which opens the shut-off valves. The PCM enables both circuits simultaneously when Air System operation is desired. When the Air System is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut-off valves prevent air flow in either direction.

OBDII Code P2258 2008 Ford Fusion - Secondary Air Injection System Control 'A' Circuit High - AutoCodes.com — P2258 2008 Ford Fusion Code - Secondary Air Injection System Control 'A' Circuit High

What does this mean?

What are the Possible Causes of the DTC P2258 2008 Ford Fusion?

Faulty Secondary Air System Relay
Secondary Air System Relay harness is open or shorted
Secondary Air System Relay circuit poor electrical connection
Faulty Secondary Air System Pump

How to Fix the DTC P2258 2008 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

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2258 2008 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 P2258 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P2258 in a 2008 Ford Fusion?

- Common symptoms include the Check Engine light illuminating, reduced engine performance, rough idling, and potentially increased emissions.

2. What does the OBDII code P2258 'Secondary Air Injection System Control 'A' Circuit High' mean for a 2008 Ford Fusion?

- This code indicates a problem with the secondary air injection system control circuit, specifically that the voltage is higher than normal.

3. What are some possible causes of OBDII code P2258 in a 2008 Ford Fusion?

- Potential causes include a faulty secondary air injection pump, damaged wiring or connectors in the system, a defective air injection bypass valve, or a malfunctioning powertrain control module (PCM).

4. How can I diagnose the issue related to OBDII code P2258 in my 2008 Ford Fusion?

- A thorough inspection of the secondary air injection system components, checking for damaged wires or connectors, testing the pump and bypass valve, and scanning the PCM for any related fault codes are recommended diagnostic steps.

5. Can I continue driving my 2008 Ford Fusion with OBDII code P2258 active?

- It is not recommended to drive the vehicle with this code active, as it can lead to reduced engine performance, potential damage to the catalytic converter, and increased emissions.

6. Will resetting the Check Engine light resolve OBDII code P2258 in my 2008 Ford Fusion?

- Simply resetting the Check Engine light will not fix the underlying issue causing the code. Proper diagnosis and repair of the secondary air injection system are necessary.

7. How much does it typically cost to repair OBDII code P2258 in a 2008 Ford Fusion?

- The cost of repair can vary depending on the specific cause of the issue. Repair costs may include parts replacement, labor, and diagnostic fees, so it's best to consult with a mechanic for an accurate estimate.

8. Can I attempt to repair OBDII code P2258 in my 2008 Ford Fusion myself?

- While some DIY enthusiasts may be able to diagnose and repair this issue, tackling the secondary air injection system can be complex. It's recommended to have a qualified mechanic or technician handle the repair to ensure it is done correctly.

9. How long does it typically take to repair OBDII code P2258 in a 2008 Ford Fusion?

- The repair time can vary based on the specific cause of the issue and the expertise of the mechanic. It may take a few hours to a full day to diagnose and repair the problem related to this code.

10. Are there any maintenance tips to prevent OBDII code P2258 in a 2008 Ford Fusion?

- Regularly inspecting and maintaining the secondary air injection system components, keeping an eye out for any signs of damage or wear, can help prevent issues that may trigger this code.