Unlock the Secrets P0491 Secondary Air Injection System Explained

The error code P0491 can be defined as Secondary Air Injection System Insufficient Flow Bank 1. This trouble code indicates that there is an issue on the side ... My VW CC 2010 is having a CEL with the code P0491 which means the pressure sensor is not detecting enough air being pumped from the intake into the exhaust. P0491 and PO492 - **SOLVED!** ... I have a recurring CEL P0491 and PO492. Any ideas? No search result shows up on this forum... ... this code is a ... S-Type / S type R Supercharged V8 ( X200 ) - P0491...secondary air pump? - I just scanned my car for a CEL and came up with this code. It read p0491. That apparently has something to do with the secondary air injection system. I think that has something to do with the n51? Possible Causes · Fuse or relay for Secondary Air Injection Pump faulty · Hose(s)/Piping between Secondary Air Injection Pump and Combi (Secondary Air Injection) ... The diagram shows the check valve that is installed in the intake has a single vacuum line that runs to the vacuum canister, however the check valve in my car ... Secondary AIR Diag VW Jetta P0491 part #1 part #2 https://youtu.be/GtQySXD7yPA?si=vWP3gwqqnzGvDV1i more diag tips for this problem before ... Sensor with the hose: https://amzn.to/3UlZBe9 Valve: https://amzn.to/3ViCOjE VW Scan tool: https://amzn.to/49hIRZn Power Probe 3 ... P0491. Says its the secondary air injection system. I went to my friends shop here in pittsburgh to check it then we cleared it. Car is running fine but it may ...