What does code P0410 mean on a Mitsubishi and is it safe to drive?
P0410: Secondary Air Injection System Malfunction. Here's what it means on your Mitsubishi, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
What this code means
The secondary air injection system, which pumps fresh air into the exhaust on cold starts, is not working correctly.
Common causes for your Mitsubishi
- Failed air pump
- Stuck or leaking one-way check valve
- Clogged or rusted air injection pipes
Symptoms
- Check Engine Light
- May fail emissions or show high cold-start emissions
Typical fixes
- Replace secondary air pump
- Replace check valve
- Clean or replace corroded piping
Repair cost range
For a Mitsubishi, repairs for P0410 often fall between $250 and $900, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Mitsubishi
Mitsubishi V6 P0410 secondary air injection failure involves the air pump and check valves. Test the pump relay and fuse before removing the pump. On the 3.8L 6G75, the check valves are a more common failure than the pump itself—test them for proper opening under airflow.
Most commonly affected models