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P1433 Diagnostic Trouble Code Discussion for September 2004

Fuel Level Sensor 2 High Voltage

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Trouble Ticket Help Requests for DTC P1433
Help Request Posted
1998 Audi A4 2.8L MIL Lamp on VIN: WAUFD68D6W
P1433: Secondary air injection relay/open circuit. ... question, This 1998 A4 has an active P1433 fault code for open air injection relay circuit. Testing the system, we found the pump bad and replaced it. The new pump will operate when the relay is jumped. However, the code remains and we are unable to activ...
September 27, 2004