P0411 Diagnostic Trouble Code Discussion for February 2014
Secondary AIR System Incorrect Airflow Detected
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| Help Request | Posted | |
| 1999 Ford Mustang 3.8L MIL Lamp on VIN: 1FAFP4043X P0411: Secondary AIR System Incorrect Upstream Flow Detected. ... for P0411. Check relay, okay, check air injection bypass solenoid okay, Vehicle idling, ground eair monitor wire and air pump and air bypass solenoid working, 02 sensors are seeing lean during Bypass operation, but according to Mitchell on Demand it's supp... |
February 24, 2014 |
