P0411 Diagnostic Trouble Code Discussion for August 2007
Secondary AIR System Incorrect Airflow Detected
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| Help Request | Posted | |
| 1997 Ford Taurus SHO 3.4L MIL Lamp on VIN: 1FALP54N5V P0411: Secondary air not detected. Vehicle arrived with this code. Checked air supply to valve after startup and no air supply. Found faulty air pump and replaced. Checked, good air flow! Returned later with same code. Tested and found good vacuum supply to divertor valve and good air flowfrom ... |
August 09, 2007 | |
| 1997 Ford Taurus SHO 3.4L MIL Lamp on VIN: 1FALP54N5V P0411: Secondary air not detected. Vehicle arrived with this code. Checked air supply to valve after startup and no air supply. Found faulty air pump and replaced. Checked, good air flow! Returned later with same code. Tested and found good vacuum supply to divertor valve and good air flowfrom ... |
August 27, 2007 |
