740 L4-2320cc 2.3L DOHC B234F (Can) (1992)
Coolant Temperature Sensor
Engine coolant temperature (ECT) sensor
The DI system uses the same ECT sensor as the MFI system. The ECT sensor has two NTC resistors, one for each system.
Throttle position (TP) switch
The ignition system uses the same TP switch as the fuel system. However, the DI system only uses the idle switch.
RPM sensor
The RPM sensor provides the control module with information about engine speed and crankshaft position (CKP) and is the most Important of the
sensor signals. Without it the control module cannot give a signal to the power stage/ignition coil and the engine cannot be started.
When the holes in the flywheel pass the sensor a magnetic field is modified producing a sine wave signal. As there are no holes In two places on
the flywheel the control unit can read its position in relation to tdc. By measuring the time between two voltage peaks the control module can
compute engine speed.
Knock sensor (KS)