AutoCodes – MINI – P1412 MINI

P1412 MINI Code - Secondary Air Injection System Max Flow Limit Check

Quick Answer

The Air Injection (AIR) System refers to an emissions control system used by some vehicle manufacturers. Common causes include Faulty Vacuum hoses damaged, Faulty One-Way Check Valve, Faulty Secondary Air Pump inoperative. 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: P1412 MINI indicates Secondary Air Injection System Max Flow Limit Check.
Common causes: Common causes include Faulty Vacuum hoses damaged, Faulty One-Way Check Valve, Faulty Secondary Air Pump inoperative.
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 995

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 Sep 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1412 MINI Description

The Air Injection (AIR) System refers to an emissions control system used by some vehicle manufacturers. It is often called secondary air injection, because air, more specifically oxygen, is injected into the exhaust manifold after start up. Vehicles start on a comparatively rich mixture to allow for smoother running conditions. However this has a large impact on exhaust gas emissions. A notable increase in hydrocarbon (HC) and carbon monoxide (CO) emissions is found under these rich start conditions. By injecting air in to the exhaust manifold the CO and HC can be oxidised. This reaction increases the temperature within the exhaust and the exhaust gas after treatment system i.e. catalytic converter can begin working earlier due to meeting its light off temperature.
The system consists of an air pump, one way check valve and associated pipework. The system operates for a predetermined time after start up. Normally this duration is approximately three minutes, when cold.

OBDII Code P1412 MINI - Secondary Air Injection System Max Flow Limit Check - AutoCodes.com — P1412 MINI Code - Secondary Air Injection System Max Flow Limit Check

What does this mean?

What are the Possible Causes of the DTC P1412 MINI?

Faulty Vacuum hoses damaged
Faulty One-Way Check Valve
Faulty Secondary Air Pump inoperative
Secondary Air Pump harness is open or shorted
Secondary Air Pump circuit poor electrical connection

How to Fix the DTC P1412 MINI?

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 P1412 MINI 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 P1412 MINI Code

1. What are the common symptoms of OBDII code P1412 in a MINI related to the Secondary Air Injection System Max Flow Limit Check?

When this code is triggered, you may experience rough idling, engine hesitation, decreased fuel efficiency, and in some cases, the Check Engine light may illuminate.

2. What usually causes the OBDII code P1412 in a MINI?

The most common causes of code P1412 in a MINI are a faulty secondary air injection pump, a blocked air intake system, or a malfunctioning secondary air injection system valve.

3. How serious is OBDII code P1412 in a MINI?

While this code may not cause immediate harm to the engine, it is essential to address it promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

4. How can I diagnose OBDII code P1412 in a MINI?

Diagnosing this code typically involves inspecting the secondary air injection system components, checking for vacuum leaks, testing the secondary air injection pump, and scanning for other related trouble codes.

5. Can I continue driving my MINI with OBDII code P1412?

It is not recommended to drive your MINI extensively with this code active, as it can lead to poor engine performance and potential long-term damage. It's best to have the issue diagnosed and repaired as soon as possible.

6. How can I repair OBDII code P1412 in a MINI?

Repairing this code often involves replacing the faulty secondary air injection pump, clearing the code from the system, and ensuring that all related components are functioning correctly.

7. Are there any DIY tips for fixing OBDII code P1412 in a MINI?

While some basic troubleshooting steps can be performed at home, diagnosing and repairing this code often requires specialized tools and expertise. It's recommended to consult a professional mechanic for a thorough inspection and repair.

8. How much does it cost to fix OBDII code P1412 in a MINI?

The cost of repairing this code can vary depending on the extent of the issue, the specific components that need replacement, and the labor rates in your area. It's advisable to obtain quotes from local mechanics for an accurate estimate.

9. Can a regular car owner reset OBDII code P1412 in a MINI?

While it is possible to reset the code using an OBDII scanner or by disconnecting the car battery, it's crucial to address the underlying issue causing the code to prevent it from reoccurring.

10. How long does it take to repair OBDII code P1412 in a MINI?

The repair time for this code can vary based on the complexity of the issue and the availability of replacement parts. In general, it may take a few hours to a day to diagnose and fix the problem effectively.