Clean Injection Cam and Crank Hall Effect Sensor kit is specifically designed for the Builder/Tuner looking for a more reliable and cleaner square wave signal to accurately determine precise engine timing. The signal produced by the engines cam or crank position sensor is vital and can affect many variables including engine longevity, fuel economy, and engine power. Clean Injection Hall effect sensor triggers exactly on the Trigger edge unlike the VR sensor waveform which triggers on the voltage threshold thus can change depending on engine speed. The Hall Effect sensors produces a clean digital output resulting in accurate ignition timing, faster start ups, and less ignition faults. No external pull up resistor required. Our sensor has a internal pull-up resistor built in. The TXL wires a.