So last year a mouse decided to build a mansion of a nest in the V of my 2005 GX470's engine and soon after that the dreaded check engine light came on. Since then I personally have replaced the following:
Please and thank you for any advice!
- secondary air injection pump
- both left & right air injection check valves
- air injection control valve
- intake manifold gasket
- PCV Valve
- Vacuum Switching valve (located underneath the intake manifold)
- air injection system hose
Please and thank you for any advice!