780 V6-2849cc 2.8L SOHC B280F (1987)
Engine Control Module: Description and Operation
Ignition
Ignition System Components
This ignition is based on the fully electronically controlled Bosch ignition system with knock control (EZ-K). The ECU (located under instrument panel
above pedal assembly to the left) uses electrical input signals from various devices and sensors to calculate the engine load and condition. With this
information the ECU will adjust the ignition timing to provide optimal performance, driveability and emissions output.
Input devices (the ECU receives):
^ Ignition switch signal.
^ Crankshaft position and speed signal.
^ Knock signal.
^ Coolant temperature signal.
^ Air mass meter signal from fuel injection control unit.
^ Throttle position signal.
^ No. 1 cylinder signal.
Output devices (The ECU controls):
^ Power stage.
^ Engine speed signal to the fuel injection control unit (fuel injection ECU input device).
