DTC P0411: Secondary Air System Incorrect Flow Detected: Notes
DTC detecting condition:
Detected when two consecutive driving cycles with fault occur.
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode Refer to ENGINE (DIAGNOSTICS) (STI)>CLEAR MEMORY MODE>OPERATION
., and inspection mode Refer to ENGINE (DIAGNOSTICS) (STI)>INSPECTION MODE>PROCEDURE
.
- CHECK SECONDARY AIR COMBINATION VALVE.
Check the pipe between the secondary air combination valve and cylinder head.
Is there damage or disconnection of the pipe?
Yes: Replace the pipe between secondary air combination valve and cylinder head. Refer to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>SECONDARY AIR COMBINATION VALVE .
No: Go to 2.
- CHECK SECONDARY AIR COMBINATION VALVE.
Race the engine at 2, 000 rpm to check whether or not the exhaust leak is heard.
Is there any exhaust leak?
Yes: Replace the pipe between secondary air combination valve and cylinder head. Refer to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>SECONDARY AIR COMBINATION VALVE .
No: Repair the poor contact of ECM connector.