Performs a cylinder balance test when injectors are suspect in engine performance problems. This vehicle-powered tool fires individual injectors in 1/2-second increments in three different ranges: 1 pulse of 500 milliseconds; 50 pulses of 10 milliseconds; 100 pulses of 5 milliseconds. Power and outut lights indicate test activation. Includes wiring harness adapter and instructions.

• Not designed for use with Diesel injection.