Slow engine torque control

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 Slow Engine Torque Control

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Slow engine torque control is used when driving under constant load, i.e. when the load does not vary or varies slowly. In this case, ECM operates mainly with throttle area to regulate the engine torque.

For higher torque requirements, turbo control will also be used to increase the air mass in the engine so that it produces the requested engine torque.

Fig 2: Identifying Connector Pin Out

Courtesy of SAAB-SCANIA OF AMERICA, INC.