EGR valve

P2447 Secondary air pump: stuck off (bank 2)

By: Diagno editorial team · Updated: 2026-10-15

P2447 means: Secondary air pump: stuck off (bank 2). The secondary air system blows air into the exhaust on a cold start so the catalytic converter warms up faster. OK to drive, but have it checked soon. The most common repair costs about €200–400 in Estonia, depending on make and model.

Is it safe to drive?OK to driveOK to drive, but have it checked soon.

Secondary air pump or valve replacement€200–400parts and labour in Estonia, depending on make and model

What it means

The secondary air system blows air into the exhaust on a cold start so the catalytic converter warms up faster. The computer found too little air or a fault in the pump or valve control. The part stays stuck in one position and doesn't follow the computer's commands. Bank 2 is the side of a V engine without cylinder 1.

What you may notice

Engine light on
Unusual pump noise on a cold start
Usually no change in driving

What could be wrong

1Air pump seized by moisture or burnt out · Secondary air pump or valve replacement €200–400
2Check valve stuck · Valve or actuator replacement €120–240
3Hose loose or cracked · Leak check and hose or gasket replacement €60–120
4Pump relay or fuse · Fuse replacement and cause check €30–60

Repair difficulty: Moderate

What you can check yourself

On a cold start, listen for the pump droning in the engine bay for a few seconds. You can check the simple things yourself, but the repair is best done in a workshop.

How we fix it

We check pump and valve operation with the diagnostic tool
We check the hoses and relay
We replace the pump or valve

Standard SAE description: Secondary Air Injection System Pump Stuck Off Bank 2

This code usually comes with: Check engine lightSee what the light means →

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

Book a diagnostic check

Questions

What does fault code P2447 mean?

Secondary air pump: stuck off (bank 2). The secondary air system blows air into the exhaust on a cold start so the catalytic converter warms up faster. The computer found too little air or a fault in the pump or valve control. The part stays stuck in one position and doesn't follow the computer's commands. Bank 2 is the side of a V engine without cylinder 1.

Can I drive with code P2447?

OK to drive, but have it checked soon.

How much does it cost to fix P2447?

It depends on the cause: secondary air pump or valve replacement €200–400; valve or actuator replacement €120–240; leak check and hose or gasket replacement €60–120. Prices include labour at €45/h, depending on make and model.

How is P2447 fixed?

We check pump and valve operation with the diagnostic tool. We check the hoses and relay. We replace the pump or valve.

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.