The Quick Answer above is the generic definition. What follows is the model-specific detail for the Porsche models that log P0410.
DTC/P0410·Porsche
P0410 on Porsche: Causes, Symptoms and Fix Cost
Quick Answer
Low SeveritySafe to drive (short-term)Porsche
P0410 on a Porsche indicates a general malfunction in the secondary air injection system. This system pumps fresh air into the exhaust during cold starts to help the catalytic converter reach operating temperature faster and reduce cold-start emissions. The code covers pump, valve, and circuit faults.
Typical repair cost, all makes€25 - €600
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Porsche Cayenne
2003-2020Early Cayenne models are known for secondary air injection faults. The pump and its check valves fail with age, and a failed check valve lets moisture back into the pump, which then fails again. Confirm how many pumps your engine actually has before ordering parts, because it differs between the V6 and V8 versions.
What causes P0410 on a Porsche?
Beyond the generic causes listed on the main P0410 page, these are the patterns noted for Porsche models:
Porsche CayenneSecondary air pump failure from age and moisture ingress
Porsche CayenneCheck valve failure allowing moisture backflow into the pump
How to diagnose P0410 on a Porsche with OBD2
Follow these steps to pinpoint the root cause of P0410:
- Start the engine from cold and listen for the secondary air pump. It should run for 30-90 seconds. No sound may indicate a dead pump or blown fuse
- Check the secondary air pump fuse and relay. Swap the relay with an identical one from the fuse box to test
- Inspect the air injection hoses for cracks, disconnections, or moisture. Water can enter the pump through the check valve and freeze in winter, destroying the pump
- Remove the secondary air valve and check that it opens freely. Carbon buildup can cause it to stick shut, blocking airflow even if the pump works
- Use a scan tool to command the air pump on and monitor the upstream O2 sensor. A functioning system should show a lean spike on the O2 sensor when the pump activates
How much does P0410 cost to fix on a Porsche? (EUR)
Estimated repair costs for P0410 in EUR, compiled across makes. Expect Porsche parts and labour towards the upper end of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P0410
These codes are often seen alongside P0410 or point to related issues, on any make:
Looking for the full P0410 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0410 guideSkanyx · Porsche
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