P2441Generic code

P2441 Code: Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)

The P2441 code means the secondary air valve on bank 1 is not opening, so the air from the pump never reaches the exhaust. A valve seized with carbon is the most common cause. The car drives normally, but you may not pass an emissions inspection.

Severity
Low
Can I keep driving?
Yes, no immediate risk
Estimated cost
$80 to $800
Difficulty
Medium
System
Emissions Control
Applies to
All OBD2 vehicles

Updated Reviewed by Renzo Chacca

On this page

What the P2441 code means

The secondary air system injects fresh air into the exhaust during the first minutes after a cold start. That burns off leftover hydrocarbons and warms the catalytic converter sooner. It is made up of an electric pump, a relay, a switching valve and a check valve next to the exhaust manifold.

When the pump runs and the oxygen sensors do not pick up the extra air, the computer stores the P2441 code.

The system works only for a minute or two after a cold start, so tests should be done with the engine cold.

P2441 code symptoms

  • Check engine light on.
  • The pump noise after a cold start is either present or missing.
  • Usually no driving symptoms.
  • May keep you from passing an emissions inspection.

Likely causes of the P2441 code

  1. Valve seized by carbon. The most frequent cause.
  2. Vacuum solenoid or hose that is not sending vacuum to the valve.
  3. Clogged line to the manifold. Confirm it with the tests in the diagnosis section.

How to diagnose the P2441 code step by step

  1. Start the engine cold and listen. The pump should run for a few seconds or minutes.
  2. Command the pump and the valve with the scan tool.
  3. Check the hoses between the pump and the manifold.
  4. Check the check valve. It should let air through only toward the exhaust.
  5. Watch the oxygen sensors with secondary air active. They should show a lean mixture.

How to fix the P2441 code

  • Replace the faulty valve or pump.
  • Clean or replace clogged passages.
  • Replace the relay if it does not switch the pump on.
  • Clear the codes and verify with a cold start.

Technical reference data

  • Secondary air pump: 12 V and a draw of 10 to 30 A.
  • Typically runs for 30 to 120 seconds after a cold start.
  • Approximate values only: check the manufacturer data for your vehicle.

Brand-specific notes

A valve that will not open usually means carbon or a lost vacuum signal. The P2441 code is worth chasing even though the car drives fine, because the same buildup can ruin the pump later. Check valves are damaged when condensation gets into the pump.

P2441 on Volkswagen, Audi, BMW, Mercedes-Benz and Porsche

Common on these European makes.

P2441 on Toyota Tundra and Sequoia

Seen on these Toyota models.

P2441 on Chevrolet

Seen on Chevrolet vehicles as well.

Frequently asked questions about P2441

Can I drive with a P2441 code?
Yes. The P2441 code does not affect how the car drives, though you may fail an emissions inspection.
What does secondary air injection do?
It helps warm up the catalytic converter and cut emissions right after a cold start.
Why does the air pump fail?
Because water or condensation gets in from the exhaust when the check valve fails.
What does the P2441 code mean?
It means the secondary air switching valve on bank 1 is stuck closed, so the pump air cannot get to the exhaust.
How much does it cost to fix P2441?
Roughly $80 to $800. A valve or hose is at the low end, and a new air pump costs the most.

Related codes

Questions about the P2441 code

There are no questions about this code yet. Tell us about your case: vehicle, symptoms and what you have already checked.