Vcds 178 [verified] ❲Reliable Blueprint❳

Fixed a bug where voltage data disappeared from the interface overview after clearing codes globally via the GVL interface.

The Secondary Air Injection (SAI) system is an emissions control device that pumps fresh air into the exhaust manifold during a cold start. This helps to rapidly heat up the catalytic converter(s) to reduce harmful tailpipe emissions. The ECU monitors the system using an oxygen sensor, and if the expected air volume is not detected, it will log this fault. vcds 178