Empowering You with Knowledge A Comprehensive Guide to P0491

The high probability fix of the P0491 & P0492 error is to replace the secondary air valve. The valve is prone to fail over time (seize) and not ... 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 ... p0491 | Watch the latest videos about #p0491 on TikTok. Cold is a relative term. The engine coolant temperature needs to be under 104F/40C otherwise the SAP pump WILL NOT be commanded on. If you have ... The OBD-II fault code P0491 means that the Secondary Air Injection System is not providing enough airflow into the exhaust system during ... The ODBII code P0491 indicates a malfunction in the secondary air injection system for bank 2, which is responsible for reducing emissions during cold ... 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 ... 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 ... I'm getting code P0491–Secondary Air Injection System Insufficient Flow Bank 1. I've cleared it twice and it keeps coming back. Does anyone know ... The error codes were a result of a bad combi-valve (which is similiar to an egr valve). Had to install parts 022-131-101-B (valve) & 078-131-120-K (gasket).