Oldsmobile Secondary Air Injection System Diagram. Po410 secondary air injection system malfunction also po442 evamporatiave emission control system leak detected small leak 2001 olds aurora 135000 miles runs great though. They are fitted between the secondary air pump 1 and exhaust manifold.
P0442 there is a small solenoid about 3000 mounted near the lr. Read or download the diagram pictures oldsmobile secondary air injection for free system diagram at zimbrahostchocolatecom. Motor has probly failed n hav it inspected n electrically tested a repair manual is very helpful may want to do code scan to confirm.
The powertrain control module pcm monitors the ho2s voltages to diagnose the air system.
I bought one from gm parts direct online for 129. The dealer wanted almost 200 for the part. An air pump is used on the vehicle to lower tail pipe emissions on start up. I checked the code and there is problem with secondary air injection system.