The main purpose of this article is to explain how to build a simple spark plug wire sensor from scratch. I don’t have the resources nor the expertise to get into how to build a luxurious mower ...

The sensor can also survive harsh environments and is not affected by accumulated dust, grime, dirt, and oil. The tachometer is factory calibrated and UL tested.

A tachometer uses a simple detector with a threshold detector to accomplish optical sensing using available ambient light.

Answer: Most likely. If the tachometer sensor is failing, the computer won’t send the right information to the torque converter solenoid or the injector pressure regulator for proper shifting.

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute (RPM). You don’t need much… ...