Why is your aftermarket tacho reading incorrectly?

An aftermarket tachometer may read incorrectly due to several factors, including improper installation, incorrect calibration, or compatibility issues with the vehicle’s engine type or ignition system. Additionally, faulty wiring or a poor connection can lead to inaccurate signals being sent to the tachometer. Ensuring that the tachometer is compatible with your specific engine setup and that all connections are secure can help resolve these issues. Consider consulting the installation manual or a professional if the problem persists.