Unraveling the Enigma A Comprehensive Guide to P0411

I inspected all the vacuum lines from the secondary air pump up to combi valve in back of head. everything was ok; no cracks or kinks. P0411 Code: Secondary Air Injection Incorrect (OBD-II). Jump to Latest. The secondary air injector is the leaf blower on the passenger side engine. The motor goes out usually because the relay is junk and gets stuck closed. It happens in the morning after pulling out of driveway. I replaced the vacuum lines to the canister, and this is not the infamous gas cap code. Processing options enable you to specify the default processing for programs and reports. Here's how the system works, the pump pulls in fresh air when the car cold starts and feeds it through the lines and the vacuum controlled diverter valves. The overall code seems to be related to secondary air injection so I thought perhaps this might be the turbo diverter valve. The pump isn't operating. You can try to make it work with lots of WD40 and white grease if the engine is just seized. It is located under the ... P0411-secondary air flow incorrect. System design: Service info pressure specifications are in kpa. The secondary air system consists of the air ... Member ... Many suffer from the early cut off of the fuel nozzle, try it at an angle. It can also be the carbon canister getting blocked. Mine ...