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 Ref. to ENGINE (DIAGNOSTICS) (STI)>Clear Memory Mode>OPERATION
, and inspection mode Ref. 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. Ref. 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. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>Secondary Air Combination Valve .
No: Repair the poor contact of ECM connector.