Unravel the Mystery Understanding the P0411 Code

Possible Causes · Fuel Pump Relay (J17) faulty · Hoses/Pipes to/between Components faulty/clogged · Secondary Air Injection Pump (V101) faulty · Secondary Air ... The SAP failure seems common in these cars for a number of reasons but carbon buildup seems to be what starts to wear on the components. A common issue with GM, VW and Audi vehicles are air injection flow codes like p0410, p0411, and p0412. It could be that some water is condensed during the 90 sec. normal operation of the valve. Not sure on that. Maybe the revised valve is meant to ... We show you info about the secondary air system and components on VW 2.5L 5 Cylinder engines. This worked for my 1.8. check the discharge line from the air pump up to the metal pipe for leaks. that metal pipe goes to the combi valve and ... 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 ... Tool Tip: Code P0411 – Secondary Air Injection System Incorrect Air Flow Detected. The AIR solenoid is a normally closed solenoid. When the AIR ... If your getting this code it can be 2 things the smog pump is bad (most likely as it sits in a bad area that collects water) or the $40 control ... 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 ...