Unlocking the Secrets of P0491 Expert Tips for Emissions System Troubleshooting

In this video, I will show you how to fix BMW the air injection codes p0491 and P0492. P0492: Secondary Air Injection System Insufficient ... I own a 2010 Bentley Supersport. here is the default code. P0491, what do you think of the secondary air circuit?? how can I identify the SAI 1 motor pump from ... Both of these codes are pointing towards a defective valve. Tests/Procedures:1. This system uses a pressure sensor to monitor secondary Air Flow from the AIR ... Code P0491 Secondary Air Injection System (Right Bank). Subscribe. Feb 3, 2006 | 10:03 PM. Turns out that a line from the secondary air injection system was disconnected. Pretty sure it happened at the full service at BH Lambo. It's not serious. Secondary air injection is used to warm up the catalytic converters during a cold start. You'll have to get it diagnosed to ... 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 ... My '07 Cayman presented engine codes P0491 and P0492 which are associated with the secondary air system. If you're seeing this code, it means the powertrain control module (PCM) has identified that the SAI system is dealing with insufficient flow. I bought this for my 2003 E46 BMW 325xi to fix the check engine light for code P0491 and P0492 which showed an error on the secondary air injection. Diagnose ...