AutoCodes – Ford – P1411 1999 Ford F150

P1411 1999 Ford F150 Code - Secondary Air Injection Downstream Flow

Quick Answer

Secondary Air Injection Downstream (AIR) Flow. Common causes include Faulty Secondary Air Injection Downstream (AIR) pump, Hose off or blocked, Bypass solenoid stuck open/closed. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1411 1999 Ford F150 indicates Secondary Air Injection Downstream Flow.
Common causes: Common causes include Faulty Secondary Air Injection Downstream (AIR) pump, Hose off or blocked, Bypass solenoid stuck open/closed.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 2,017

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1411 1999 Ford F150 Description

Secondary Air Injection Downstream (AIR) Flow. The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system Electric AIR Pump Hose from AIR pump leak AIR bypass solenoid leak/blocked Hose from AIR pump blocked AIR bypass solenoid stuck open/closed In order to test the AIR pump, it must be capable of driving the HO2S lean.

OBDII Code P1411 1999 Ford F150 - Secondary Air Injection Downstream Flow - AutoCodes.com — P1411 1999 Ford F150 Code - Secondary Air Injection Downstream Flow

What does this mean?

What are the Possible Causes of the DTC P1411 1999 Ford F150?

Faulty Secondary Air Injection Downstream (AIR) pump
Hose off or blocked
Bypass solenoid stuck open/closed

How to Fix the DTC P1411 1999 Ford F150?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1411 1999 Ford F150 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 P1411 1999 Ford F150 code?

Need more information on how to fix the P1411 1999 Ford F150 code? Get Access to Factory Service Manuals

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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 P1411 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1411 on a 1999 Ford F150?

The common symptoms may include illuminated Check Engine Light (CEL), rough idling, decreased engine performance, and possible increased emissions.

2. What does the OBDII code P1411 for a 1999 Ford F150 indicate?

OBDII code P1411 indicates a problem with the Secondary Air Injection Downstream Flow in the vehicle's emission control system.

3. What are the possible causes of OBDII code P1411 on a 1999 Ford F150?

Possible causes may include a faulty air pump, damaged hoses, clogged air injection system, or a malfunctioning air bypass valve.

4. How can I diagnose the issue related to OBDII code P1411 on my 1999 Ford F150?

You can use an OBDII scanner to retrieve the code and then visually inspect the air injection system components, check for vacuum leaks, and test the air pump functionality.

5. Are there any DIY repair tips for fixing OBDII code P1411 on a 1999 Ford F150?

You can start by checking and cleaning the air injection system components, replacing damaged hoses, testing the air pump, and ensuring proper electrical connections.

6. Can driving with OBDII code P1411 on a 1999 Ford F150 cause further damage?

Continued driving with this code may lead to increased emissions, poor engine performance, and potential damage to other emission control components over time.

7. How much does it typically cost to repair OBDII code P1411 on a 1999 Ford F150?

The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

8. Can resetting the Check Engine Light resolve OBDII code P1411 on a 1999 Ford F150?

While resetting the light may temporarily turn it off, the underlying issue causing the code will still need to be diagnosed and repaired to prevent further problems.

9. Is it safe to drive my 1999 Ford F150 with OBDII code P1411?

It is generally not recommended to drive with this code unresolved, as it can lead to decreased fuel efficiency, increased emissions, and potential engine performance issues.

10. How often does OBDII code P1411 occur in a 1999 Ford F150?

The occurrence of this code can vary, but it is relatively common in vehicles with secondary air injection systems, especially as they age and components wear out.