• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty air flow/pressure sensor
• Wiring issues such as short circuits
• Faulty air injection pump
Bank 1: The side of the engine with cylinder number one.
AIR System: Secondary Air Injection system used to reduce emissions.
• P2430
• P2431
• P2432
AIR System Air Flow/Pressure Sensor Circuit High Bank 1
This code means there's a problem with the sensor that checks the air flow or pressure in part of the car's engine. It's like when a toy's battery is too strong and makes it work too fast.
The P2433 code indicates that the Secondary Air Injection (AIR) System Air Flow/Pressure Sensor Circuit on Bank 1 is reading a voltage that is higher than expected.
The Secondary Air Injection (AIR) system is designed to reduce emissions by injecting fresh air into the exhaust stream. The system uses a sensor to monitor the air flow or pressure to ensure proper operation. Code P2433 is triggered when the sensor's circuit on Bank 1 detects a voltage reading that is higher than the predetermined threshold, indicating a potential issue with the sensor or its circuit.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the air flow/pressure sensor for proper operation.
• Replace the faulty air flow/pressure sensor.
• Repair or replace damaged wiring or connectors.
• Replace the air injection pump if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Camry
• Lexus RX350
• Chevrolet Silverado
• Regular maintenance of the air injection system.
• Ensure wiring and connectors are free from corrosion.
• Use high-quality replacement parts.
Sensor Issue
• Do not ignore the Check Engine Light.
• Consult a professional mechanic if unsure.
• Regularly check for recalls related to the air injection system.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been more common in vehicles with aging emission systems or those exposed to harsh environmental conditions.
Moderate – It should be addressed soon to prevent increased emissions and potential engine performance issues.
Driving with a malfunctioning emissions system may violate local emissions laws.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The air flow/pressure sensor is typically located near the air injection pump on Bank 1 of the engine.
Q: Can I drive with a P2433 code?
A: While the car may still be drivable, it's best to fix the issue to avoid increased emissions and potential engine problems.
Q: How do I reset the Check Engine Light after a repair?
A: Use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
