09 Oct 2026
The voice of the independent garage sector

Creating a buzz

This all-makes tool connects to the common rail injector whilst on or off the vehicle to run an electronic diagnosis and is designed to complement the sealed rail kit and false actuator kit. Once connected, the Buzz Tool measures the resistance/inductance of the injector coil, checks the insulation of the coil to the injector body and drives the valve to make it ‘buzz’. The tool is supplied with a set of eight adaptors for the whole range of known CR solenoid injectors.