Empowering You Fixing P0411 Like a Pro

You appear to have a PZEV car. That's a PZEV secondary air fault code. It could be covered by the emissions warranty.......why not check with a ... The code is set when the pressure switch doesn't sense the correct pressure from the pump. I'm pretty sure the pressure sensor is part of the check valve. Performed output test of components (air pump and valve that directs air to exhaust) for SAI successfully. This is a 1- bank system. I belive it is the dreaded C-word. Basically your pre-cat O2 sensors are telling the computer that they are not detecting enough oxygen on COLD ... A common issue with GM, VW and Audi vehicles are air injection flow codes like p0410, p0411, and p0412. I bought a new smog pump and a new check valve. i swapped out both parts valve and pump. Only code i get now is P0411. when starting the car now the pump is ... The light may or may not go out on its won, Chevy computers store codes until they are cleared out with a code reader, I'd say go to a parts ... The car will run approximately 20 to 30 minutes and will start to shake and shut off. We replaced the throttle body due to launch scanner stating it was ... 2008 Jetta 2.5, throws code P0411 Secondary Air Injection System Incorrect Flow Detected. I've jumpered the air pump ... Customer: Customer: 2008 ... 98 Taurus, 6cyl, 3.0L OHV, 184K miles. Check engine light is on and code reads "P0411 - secondary air injection system - incorrect flow".