P2441moderate severityPowertrain
Secondary Air Injection System Switching Valve Stuck Closed Bank 1
on 2016 Chevrolet Impala 3.6L V6 LFX · AWD
What this code means
The secondary air switching valve bank 1 is stuck closed, preventing air injection.
Symptoms
- Check engine light
- High emissions at cold start
- Slow catalyst warm-up
Common causes
- Corroded/stuck valve
- No vacuum to valve
- Carbon buildup
Diagnostic steps
- Check vacuum supply to valve
- Inspect valve mechanism
- Verify air pump operation
Repair notes
Replace valve or repair vacuum supply.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1