Troubleshooting P0491 The Ultimate Resource for Error Code Resolution

The P0491 code indicates a fault with the system, typically indicating that the secondary air flow is too low on bank 1. Bank #1 refers to the side of the ... 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 dual codes indicate a system failure. A system failure can be due to one of the following: 1) Air pump failure - This is a fairly common ... Secondary Air Injection System Insufficient Flow Bank 1. DTC P0491, sometimes indicated as P049100, is an OBD diagnostic trouble code indicating a generic fault ... 2011 458, the CEL came on. I drive back home and hooked up my code reader, it showed a P0491 Secondary air injection system, Bank #1. Anybody have this problem? 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 ... engine code P0491 and P0492 problem solved ... I have been able to fix these trouble codes on the secondary air injection system with the help of ... Products | P0491, Appleton · Application: For use with toggle switch and 4 x 2-1/8 in box · Country of Origin: US · Cover Type: Toggle Switch · Finish: Galvanized ... 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 ... P0491 Secondary Air Injection System Insufficient Flow. Stumped. My VW CC 2010 is having a check engine light with the code P0491 which ...