Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that a part of the car that helps reduce pollution isn't working properly on one side of the engine.
The P2447 code indicates that the secondary air injection pump is not functioning on bank 2 of the engine.
The secondary air injection system is responsible for injecting fresh air into the exhaust system to help reduce emissions during cold start. The P2447 code is triggered when the Engine Control Module (ECM) detects that the air pump is not operating as expected on bank 2, which is the side of the engine that does not include cylinder 1.
• Check Engine Light is on
• Increased vehicle emissions
• Failed emissions test
• Faulty air injection pump
• Damaged air injection pump relay
• Wiring issues in the air injection system
ECM: Engine Control Module, the computer that controls engine functions.
Bank 2: The side of the engine opposite to bank 1, which does not include cylinder 1.
• Use an OBD-II scanner to confirm the code.
• Inspect the air injection pump and relay for damage.
• Check wiring and connections in the air injection system.
• Replace the air injection pump if faulty.
• Replace or repair the air injection pump relay.
• Repair or replace damaged wiring or connectors.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Tundra
• Lexus GX470
• Toyota Sequoia
• Regularly maintain the air injection system.
• Inspect and replace faulty relays promptly.
• Ensure proper electrical connections.
Emission Control System Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle excessively until repaired to prevent further damage.
Check with the manufacturer for emissions-related warranty coverage.
The P2447 code has been reported in vehicles with secondary air injection systems, particularly in models from the early 2000s.
Moderate – It should be addressed soon to prevent emissions test failure and potential engine performance issues.
Driving with a malfunctioning emissions system may violate local emissions laws and contribute to air pollution.
• Engine cold start
• Idle conditions
The secondary air injection pump is usually located near the front of the engine bay, often on the side of the engine corresponding to bank 2.
Q: Can I drive with a P2447 code?
A: While the vehicle may still be drivable, it's best to repair the issue soon to avoid increased emissions and potential engine performance problems.
Q: What happens if I ignore the P2447 code?
A: Ignoring the code can lead to failed emissions tests, increased pollution, and potential damage to the catalytic converter.
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