General description

GENERAL DESCRIPTION

Refer to the instructions given for the 1747 T.S. 16V and 1970 T.S. 16V engines but bearing in mind that the system is not fitted with the variable geometry intake box and the associated components.

Therefore, the operating logic for "Timing variator and modular intake manifold control" is as described below.

Timing variator control

In order to optimise the amount of air taken in by the engine the control unit controls intake timing on two angular positions.

At maximum torque the control units sets the "open" phase with the cam advance by 25° of the engine.

At full power and at idle speed, the control unit sets the "closed" phase with the cam in the normal position.

In the other engine operating conditions, the control unit chooses the most suitable configuration to optimise performance, consumption and emission rates.

For all the other operating logics, refer to the instructions for the 1747 T.S. 16V and 1970 T.S. 16V engines.