Digital Hall Effect and Optical Sensor Types
The second type of sensor found of crank and camshafts known as a Hall Effect (this includes optical sensors) sensor. This style of sensor has a transistor and some electronics built into the sensor itself and will generally require a power supply and ground of some sort. For this reason a hall effect sensor usually has at least 3 wires. The output of this style of sensor is a digital square wave.
Because the output from a hall effect sensor is already in digital form, the ECU does not need to do any signal conditioning to be able to use it.
When given the option, a hall effect sensor is always the best option to put on an engine and it reduces the amount of work required of the ECU.
In applications where either direct fire ignition or sequential fuel injection is required, the ECU must have a way of determining where it is in the firing order at any point in time and which cylinders are on compression and which are on exhaust. The only way of determining this is to use a sensor connected to the camshaft that sends a signal to the ECU when the engine is approaching cylinder 1 TDC on the compression stroke.
Hall Effect or Reluctor?
The two most important sensors on your engine are the crank and cam sensors, so it’s super important to ensure they’re installed, wired and configured correctly. Sensor Type: Hall Effect or Reluctor? A Hall effect sensor typically has 3 wires. Power, ...
Reluctor Sensor Types
Variable Reluctance Transducers (VRT or simply reluctor) – this kind of sensor produces a sine wave output. Generally a VRT sensor will have only 2 wires (a third wire may be present but its generally a shield wire to help protect the signal from ...
Determining Hall Effect sensor pinouts
Using a multimeter with a diode drop function (triangle with a line next to it), you can work out the pinout of an unknown Hall Effect sensor. This is a super simple schematic of what we're looking for (voltage can only go in the direction of the ...
Trigger Wiring (Crank and Cam Angle Sensors)
The most critical sensor on the engine is the engine speed sensor, without this sensor the ECU would not know that the engine is moving and therefore it would never fire a spark nor inject any fuel. The ECU gets information from the crankshaft and ...
This section contains setup information for configuring your engines' trigger system, including crank and cam trigger patterns and sensors. Page Contents Trigger Configuration Trigger Type Number of Teeth Number of Missing Teeth Trigger Signal ...