Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a system that helps reduce pollution, and it's not working right because the air isn't flowing like it should.
The secondary air injection system helps reduce emissions by injecting air into the exhaust stream to help burn off excess fuel. This code indicates that the flow of air in this system is not what the car's computer expects.
The P1432 code is triggered when the Powertrain Control Module (PCM) detects an incorrect flow of air in the secondary air injection system. This system is designed to pump fresh air into the exhaust stream to reduce emissions. An incorrect flow can be due to a malfunctioning pump, blocked hoses, or faulty valves.
• Check Engine Light is on
• Failed emissions test
• Rough engine idle
• Faulty secondary air injection pump
• Blocked or leaking hoses
• Malfunctioning air injection check valve
PCM: Powertrain Control Module
Secondary Air Injection System: A system that pumps fresh air into the exhaust to reduce emissions
• Use an OBD-II scanner to confirm the code.
• Inspect the air injection pump and hoses for damage or blockages.
• Test the air injection check valve for proper operation.
• Replace the faulty air injection pump.
• Clear blockages in the hoses or replace damaged hoses.
• Replace the malfunctioning air injection check valve.
• OBD-II scanner
• Multimeter
• Vacuum pump
$150 - $500
Moderate
• BMW 3 Series
• Volkswagen Passat
• Audi A4
• Regularly inspect and maintain the air injection system.
• Replace air filters as recommended.
• Check for leaks in the exhaust system.
Emission Control System Issue
• Have your vehicle inspected by a professional if you notice the Check Engine Light.
• Ensure regular maintenance checks to prevent future issues.
Check with your vehicle manufacturer for emissions-related warranty coverage.
This code has been commonly reported in vehicles with aging secondary air injection systems or in areas with strict emissions standards.
Moderate – While the vehicle may still run, emissions may be higher than allowed, and it could fail an emissions test.
Driving with this code may lead to increased emissions, which could be illegal in areas with strict emissions regulations.
• Engine at operating temperature
• Vehicle in a stationary position
The secondary air injection pump is usually located near the front of the engine bay, connected to the exhaust manifold.
Q: Can I drive my car with a P1432 code?
A: Yes, but it's not recommended for long periods as it may cause higher emissions and potential damage to the catalytic converter.
Q: Will a P1432 code cause my car to fail an emissions test?
A: Yes, this code indicates a problem with the emissions system, which can cause your car to fail an emissions test.
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