9000 CS L4-2290cc 2.3L DOHC Turbo EFI (1996)
Irrespective of which engine management system the car is equipped with, the EDU control module calculates fuel consumption by measuring the length
of the input signal pulses.
Fuel Level Sensor
The fuel level sensor in the pump unit has a float arm with a slip contact which is in contact with a stepping resistor.
The level sensor is voltage fed from pin 33 on the control module and is grounded by pin 26. The Electronic Display Unit (EDU) measures the resistance
of the level sensor which increases with the level of fuel in the tank.
The fuel level is measured every 50 ms. The fuel gauge display is based on an average value which is calculated every 32 seconds.
Fuel Level Sensor, Warning Lamp