Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's system that helps clean the air from the engine isn't working as well as it should on one side of the engine.
The secondary air injection system helps reduce emissions by injecting air into the exhaust stream. This code indicates that the system's performance is below expected levels for Bank 1.
The P145E code is triggered when the Engine Control Module (ECM) detects that the secondary air pump is not providing enough air to the exhaust system on Bank 1. This can affect the vehicle's emission levels and may cause the vehicle to fail an emissions test.
• Check Engine Light is on
• Failed emissions test
• Reduced engine performance
• Faulty secondary air pump
• Blocked or leaking air hoses
• Malfunctioning air pump relay
Secondary Air Injection System: A system that injects air into the exhaust to reduce emissions.
Bank 1: The side of the engine that contains cylinder 1.
• Check for any other related codes
• Inspect air pump and hoses for damage or blockage
• Test air pump relay and electrical connections
• Replace faulty secondary air pump
• Repair or replace damaged hoses
• Replace faulty air pump relay
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• BMW 3 Series
• Audi A4
• Volkswagen Passat
• Regularly inspect and maintain air injection system components
• Ensure proper sealing of hoses and connections
• Perform routine emissions tests
Engine Performance
• Address the issue promptly to avoid emissions test failure
• Consult a professional mechanic if unsure about repairs
Check with the vehicle manufacturer for any emissions-related warranty coverage.
The P145E code has been associated with vehicles equipped with secondary air injection systems, particularly in models from the late 1990s to early 2010s.
Moderate – While the vehicle may still be drivable, it is important to address this issue to ensure compliance with emissions regulations.
Ignoring this code may result in failing emissions tests, which could lead to fines or inability to register the vehicle in some areas.
• Engine at operating temperature
• Secondary air injection system active
The secondary air pump is typically located near the front of the engine bay, connected to the exhaust manifold via hoses.
Q: Can I drive my car with a P145E code?
A: Yes, but it's best to fix it soon to pass emissions tests and avoid further issues.
Q: How do I know if my secondary air pump is bad?
A: You might hear unusual noises from the pump, or the Check Engine Light may come on.
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