P1613 Secondary Air Injection Malfunction
What does P1613 mean on a Toyota?
P1613 — Secondary Air Injection Malfunction. This Toyota-enhanced code applies to Tundra, Sequoia, Land Cruiser with SAI.
Common causes of P1613
- Failed air injection pump
- Blocked air passages
- Failed switching valves
- Blown SAI fuse or relay
- Water intrusion into the pump
How to fix P1613
- Verify pump operation on cold start
- Check SAI fuses and relays
- Inspect for water damage
- Test switching valve function
- Replace the pump or valves per flow tests