P1412 Code - Secondary Air Injection System Fault Bank 1
Quick Answer
The secondary air injection pump relay is located in the engine compartment fusebox. Common causes include Faulty Secondary Air Injection (SAI) Vacuum Solenoid Valve, Intake air leak, Blocked SAI System hoses. 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 indicates Secondary Air Injection System Fault Bank 1.
- Common causes
- Common causes include Faulty Secondary Air Injection (SAI) Vacuum Solenoid Valve, Intake air leak, Blocked SAI System hoses.
- 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.
Code P1412 Description
What are the Possible Causes of the DTC P1412?
- Faulty Secondary Air Injection (SAI) Vacuum Solenoid Valve
- Intake air leak
- Blocked SAI System hoses
- SAI Vacuum Solenoid Valve harness is open or shorted
- SAI Vacuum Solenoid Valve circuit poor electrical connection
How to Fix the DTC P1412?
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 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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Need Help with the Code?
Get the P1412 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1412 Audi — EGR Differential Pressure Sensor Signal Too Low
- P1412 BMW — Secondary Air Injection System Max Flow Limit Check
- P1412 Land Rover — Secondary Air Injection System Fault Bank 1
- P1412 Mazda — EGR Valve Pintle Frozen
- P1412 MINI — Secondary Air Injection System Max Flow Limit Check
- P1412 Volkswagen — EGR Differential Pressure Sensor Signal Too Low
Frequently Asked Questions about P1412 Code
1. What are common symptoms of OBDII code P1412 (Secondary Air Injection System Fault Bank 1)?
- Common symptoms include rough idle, engine misfires, decreased fuel efficiency, and the illumination of the Check Engine Light.
2. What are possible causes of OBDII code P1412?
- Potential causes include a faulty secondary air injection pump, damaged air injection hoses, a malfunctioning air injection valve, or issues with the electrical connections in the system.
3. How can I diagnose the source of OBDII code P1412?
- Diagnosing the issue typically involves performing a visual inspection of the air injection system components, checking for vacuum leaks, testing the operation of the air injection pump, and using a scan tool to monitor system parameters.
4. Can I continue driving my vehicle with OBDII code P1412?
- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the engine or emissions system. It's best to address the issue promptly.
5. How is OBDII code P1412 typically repaired?
- Repairs for this code often involve replacing faulty components such as the air injection pump, air injection valve, or damaged hoses. Additionally, addressing any electrical issues in the system may be necessary.
6. Are there any DIY repair tips for OBDII code P1412?
- While some basic inspections and tests can be done by DIY enthusiasts, diagnosing and repairing this code often requires specialized tools and expertise. It's recommended to consult a professional mechanic for proper diagnosis and repair.
7. Can a clogged air filter cause OBDII code P1412?
- A clogged air filter is unlikely to directly cause this specific fault code. However, a restricted air filter can impact overall engine performance and efficiency, which may indirectly contribute to system faults.
8. Will resetting the Check Engine Light resolve OBDII code P1412?
- Simply resetting the Check Engine Light will not fix the underlying issue causing the fault code. The problem must be diagnosed, repaired, and the code cleared using a scan tool to prevent it from reoccurring.
9. How much does it typically cost to repair OBDII code P1412?
- Repair costs can vary depending on the specific cause of the fault, the extent of the damage, and labor rates in your area. It's advisable to obtain quotes from reputable mechanics to determine the cost of repairs.
10. What is the purpose of the secondary air injection system in a vehicle?
- The secondary air injection system helps reduce emissions by introducing fresh air into the exhaust system to facilitate the combustion of unburned fuel. This aids in the efficient operation of the catalytic converter.
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