Operation

(Continued)

The ECU processes the electric signals from the following devices and pilots the ignition coils:

• throttle position potentiometer, intake air temperature sensor and absolute pressure sensor (for exact intake air quantity).

The throttle position potentiometer, moreover, detects minimum, partial and full load conditions.

• the rev sensor, which generates an alternating single phase signal indicating the engine revolution frequency and piston position.

OPERATION

ECU INPUT/OUT DIAGRAM

(Cont.)