OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
P1409
EGR Vacuum Regulator Solenoid Circuit Malfunction
Ford
Auxiliary Emissions Control
Medium severity
P1413
Secondary Air Injection System Monitor Circuit Low Voltage
Ford
Auxiliary Emissions Control
Medium severity
P1416
Port Air Circuit Malfunction/AIR System Bank 2
Ford
Auxiliary Emissions Control
Medium severity
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