P1450moderate severityPowertrain
Secondary Air Injection System Circuit Short
on 2015 Audi R8 5.2L V10 (Gen 1, 525hp) · AWD
What this code means
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.
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