Empowering You A DIY Guide to Fixing P0411

Your secondary emissions air pump is located on the right side of the engine bay towards the front of the car. Its purpose is to inject fresh ... Due to the possibility of the faucet being a "customized build" product, the user is responsible to first compare the existing cartridge needing replacement ... The Secondary AIR system will set code P0411 when both the AIR pump and AIR solenoid are commanded ON but the system pressure falls outside the expected 0.7-1. ... P0411 (Secondary air injection incorrect upstream flow detected). I have reset the light twice and it will stay off until the truck sits for 6+ hours then it ... 2006 Grand Prix Base with 3800 engine. It threw the secondary air pump code P0411. Couldn't hear the pump running, so picked one up from Rock Auto and ... IIRC the point of the air injection pump is to more rapidly heat up the catalytic converters. Running fuel rich produces a cooler exhaust, not a ... My check engine light is on. The computer showed a trouble code P0411. I need to know what caused it and what I can do to fix the problem. 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 ... P0411 code definition The P0411 DTC is a generic OBD-II code that points to a malfunction within the secondary air injection system. What the P0411 code ... The code is letting you know that the ECM has detected incorrect flow in the secondary air injection system.