P0411 code = secondary air flow

Hello,

This means the secondary air control valve needs to be replaced here are instructions and diagrams to help you get the job done. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

P0411: Secondary Air Injection System Insufficient Flow. Either the smog pump isn't supplying enough air pressure, or one of the valves in the system isn't operating properly. Most regular mechanics can fix this.
P2430: Secondary Air Injection System Pressure Sensor Stuck in Range. This tells me that both problems are probably a faulty air injection system pressure sensor. Any mechanic. Some Pep Boys stores do this work. You could probably save yourself quite a bit of money by buying a Chilton's or Haynes repair manual at the same store and doing it yourself. The manuals usually cost around $20.