P2441 on Volkswagen
Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)
P2441 on Volkswagen vehicles indicates secondary air injection system switching valve stuck closed (bank 1). Au7o has documented this code across 1 Volkswagen model — most commonly on Phaeton. P2441 indicates the secondary air injection system switching valve on bank 1 is stuck closed. The secondary air injection system pumps fresh air into the exhaust during cold starts to help the catalytic converter heat up and burn off pollutants faster; a switching valve controls that airflow. When the PCM commands the valve open but airflow doesn't occur as expected, it concludes the valve is stuck closed. This mainly affects cold-start emissions and will fail an emissions test, though drivability is usually normal. Typical repair costs on Volkswagen range from $300 to $1,200, depending on the specific model and root cause.
Common Causes of P2441
- •Stuck or seized secondary air switching valve (bank 1)
- •Carbon or rust buildup clogging the valve or air passages
- •Failed vacuum/control solenoid for the valve
- •Damaged vacuum lines or electrical connector to the valve
- •Faulty secondary air injection pump
- •Wiring fault in the valve control circuit
- •Moisture/corrosion in the air injection plumbing
P2441 on Volkswagen by Model
Volkswagen Phaeton(1 issue)
- Secondary Air Injection Pump Failure on V8/W12 (P0410/P2440)2004-2016
The petrol V8 and W12 engines have a secondary air injection (SAI) pump used during cold start to reduce emissions. Moisture (naturally present in exhaust) backflows through worn one-way check valves into the pump, corroding/freezing it and causing failure. This triggers a check-engine light with SAI codes. On the Phaeton the pump sits above the front of the left wheel-well liner. A frequent re-failure cause is not fitting the drain tube to the pump housing during replacement.
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What does P2441 mean on Volkswagen?▼
P2441 stands for "Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)." P2441 indicates the secondary air injection system switching valve on bank 1 is stuck closed. The secondary air injection system pumps fresh air into the exhaust during cold starts to help the catalytic converter heat up and burn off pollutants faster; a switching valve controls that airflow. When the PCM commands the valve open but airflow doesn't occur as expected, it concludes the valve is stuck closed. This mainly affects cold-start emissions and will fail an emissions test, though drivability is usually normal. On Volkswagen specifically, this code is documented across 1 model.
What causes P2441 on Volkswagen vehicles?▼
Common causes on Volkswagen: Stuck or seized secondary air switching valve (bank 1), Carbon or rust buildup clogging the valve or air passages, Failed vacuum/control solenoid for the valve, Damaged vacuum lines or electrical connector to the valve, Faulty secondary air injection pump. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2441 on a Volkswagen?▼
Repair costs on Volkswagen range from $300 to $1,200, depending on the specific model and root cause.
Which Volkswagen models have P2441 documented?▼
Au7o has documented P2441 on 1 Volkswagen model: Phaeton.