Q: How to Replace the Secondary Air Injection System Components and Air Injection Pump?A: To replace the secondary air injection pump on 2006 and later turbo-charged models, disconnect the negative battery terminal, detach the wiring harness from the pump, remove the pump's mounting bolts, disconnect the electrical connector, lift and disconnect the air hose, then remove the pump. Reinstall in reverse order. For the secondary air combination valves, disconnect the negative battery terminal, remove the intercooler, disconnect the electrical connector, and remove the air duct. Unbolt the outlet pipe, discard the old gasket, remove the left and then the right valve. Reinstall with a new gasket in reverse order.