Description

CKP hall sensor, Megasquirt type (diyautotune)

Description
Hall effect crankshaft or camshaft position sensor. We have tested this with our 6.75" and 8.25" trigger wheels. We were able to get a rock-solid reading at over 19,200 RPM, which is about as fast as our test rig could turn the trigger wheel. It runs on 5 to 24 volts and generates a nice square wave so there are no variable voltage issues. She has a 3-strand ponytail that is 12 inches long. This is what the cables do:

Red: supply voltage; connect to VREF or 12 volt switched power.
White – Exit signal. In ProyectECU it is connected to the VR1+ input. For other ECUs investigate Hall type CKP input. Use a 1K resistor when feeding it 5 volts or a 2.4K resistor when feeding it 12 volts.
Black – Earth.

Specs:

Operating voltage: 4.75 to 24 volts
Over voltage peak and reverse voltage: +27 to -25 volts
Maximum output current: 20mA.
Maximum frequency: 15kHz
Temperature range: -40 to +125 degrees C
Max air gap: 5mm.
Note that this is an absolute maximum. For most tonewheels, operation is most reliable with an air gap of 1.0 to 1.5mm.
The tone wheel must be at least 2mm wide, the teeth and gaps must be at least 2mm wide, and the gaps must be at least 2mm deep.