After starting

WARNING: This page is about a different car, the 2005 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Sensor

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Immediately after starting the engine, the correction factor is slightly over 1 and then falls gradually to 1.00. The extent to which the correction factor exceeds 1 and the time it takes to reach 1.00 again depend on the coolant temperature. On cars with carburetor engines, this function is the choke. The closed loop starting criteria are such that it starts just when fuel enrichment after starting has dropped to 1.00.

Fig 2: Identifying Curve Pattern

Courtesy of SAAB-SCANIA OF AMERICA, INC.