: The manual details a "fuel quality" feature that tracks injection system health by comparing current engine performance against a saved baseline.

: For older cars without OBD-II. Requires manual wiring to the speed sensor, fuel level sensor (DUT), and fuel injectors.

To help you with your specific vehicle, are you planning to use the or do you need to do a manual wire-in for an older car?

: Reviewers often mention that while the physical installation is simple, navigating the deep menu settings requires keeping the official instruction manual handy.