SOURCE: engine lite on code p0411 s need to find fuse for secondary air p
secondary air injection system incorrect flow, may
electric valve not opening or bent on the hose
SOURCE: po411 code on a 2008 chevy impala lt can anyone
there is no po441 code on this vehicle there is a p0442.
SOURCE: P0411 code 99 Passat
The secondary Air Injection system, this is basically an inspect and replace broken hose detail. Leave the inlet hose disconnected and start the engine. Listen and feel for exhaust hissing at the check valves.The check valve(s) will make like a gurgling sound as air is drawn in However , if exhaust is felt or heard replace the valve. Hope this works out for ya.
SOURCE: p0411 code called secondary air pump if it is
P0411= Secondary Air Injection Incorrect Upstream Flow Detected
SOURCE: have engine codes P1411 and P0411 secondary air
CHECK SECONDARY AIR PUMP SOLENOID FUSE AND VACUUM LINE TO SOLENOID.IF FUSE AND VACUUM LINE OKAY GETTING VACUUM. THE SECONDARY AIR PUMP SOLENOID OPEN OR SECONDARY AIR PUMP FAULTY.ALSO CHECK CHECK VALVES AND THE AIR LINES GOING TO EXHAUST MANIFOLD. MAKE THEY ARE NOT DAMAGED OR LOOSE.THE CHECK VALVES ON THE LINES IS ONE WAY VALVES YOU SHOULD NOT BE ABLE TO BLOW BACK INTO VALVE IF SO ITS FAULTY.
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