Troubleshooting Code P0411 The Essential Guide for Mechanics

A common issue with GM, VW and Audi vehicles are air injection flow codes like p0410, p0411, and p0412. Most of the time with this code it is the check valve on the head that freezes up and won't open. Thus, when the pump runs, no flow is detected ... Troubleshoot your vehicle's P0411 code for Secondary Air Injection System Incorrect Flow Detected with our expert advice and solutions. OBD-II code P0411 means you've either put the one-way valve backwards, have a leak or loose vacuum hose or routed them incorrectly. The p0411 means that the air pump used to inject air into your exhaust ahead of your catalytic converters is not working properly. Claim your FREE engine code eraser https://free.nonda.co ============================= Engine Code P0411 Saving Repair Parts: Air ... 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 ... 1) Remove the valve and inspect it for carbon build up (buy a replacement gasket 1st) and possibly replacing it. Part number 11727508049 Due to the possibility of the faucet being a "customized build" product, the user is responsible to first compare the existing cartridge needing replacement ... P0411 is defined as a Secondary Air Injection Incorrect Flow Detected. What does this Mean? The Secondary Air System pumps outside fresh air into the Exhaust ...