Important Note:

During service work, assure that the sensors are connected correctly (see Repair Manual).

The knock control and differential air intake control functions have been added to the Engine Control (DME M1.7) system.

The engine control module has been revised in design so that it still needs only one circuit board despite the additional functions.

The engine control module initiates and monitors the following functions:

- knock control (2 sensors)

- DISA control

- ignition timing

- semi-sequential fuel injection

- cold-starting

- adaptive oxygen sensor control

- adaptive idle speed regulation

- adaptive fuel tank venting

- mixture enrichment during warming-up

- mixture enrichment when acclerating

- dynamic overrun fuel cutoff

- catalytic converter protection

- emergency operating program

- version coding





Block diagram of DME M1.7 for M42/E36