Secondary Air Injection System Circuit Short
2000-2003 Audi S6 4.2L V8
Description
The ECU detected an electrical short in the secondary air injection system circuit. The system is unable to operate correctly, preventing proper cold-start emission reduction.
Symptoms
- Check Engine Light
- Higher cold-start emissions
- Failed emissions test
- Unusual noise from air pump
Common Causes
- Shorted wiring in secondary air circuit
- Faulty secondary air pump motor
- Relay contact welded closed
- Damaged connector
- Water intrusion in air pump
Diagnostic Steps
- Test secondary air pump motor resistance
- Check circuit for shorts
- Test relay operation
- Inspect connector and wiring
- Check for water entry in pump
Repair Notes
Repair the electrical short or replace the secondary air pump.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1450 on Other Vehicles
Common Questions
What does code P1450 mean on a 2000-2003 Audi S6?
P1450 stands for "Secondary Air Injection System Circuit Short". The ECU detected an electrical short in the secondary air injection system circuit. The system is unable to operate correctly, preventing proper cold-start emission reduction.
What are the symptoms of P1450 on a Audi S6?
Common symptoms of P1450 include: Check Engine Light, Higher cold-start emissions, Failed emissions test, Unusual noise from air pump.
What causes P1450 on a 2000-2003 Audi S6?
Common causes of P1450 include: Shorted wiring in secondary air circuit, Faulty secondary air pump motor, Relay contact welded closed, Damaged connector, Water intrusion in air pump.