The present invention relates to an occupant protection arrangement for a motor vehicle comprising at least one inflatable airbag (20) having a front surface (22), said front surface (22) facing towards an occupant (10) when said airbag (20) is inflated an...

The method involves measuring a time delay by a sensor (14) until rear lambdasond (17) senses the oxygen loaded or oxygen unloaded condition of a catalyst (16). Another delay is measured by the lambdasond until it senses the oxygen unloaded or loaded condi...