The MotorVac DieselTune Emissions and Intake Cleaning Tool is designed to clean diesel EGR systems. EGR Systems can become clogged with carbon deposits that affect fuel economy and performance of a diesel vehicle. Through application specific adapters, this product injects a cleaning solution into the EGR system. The tool creates a foaming action that removes carbon buildup without damaging components. This tool helps dissolve deposits, eliminating the issues commonly associated with plugged EGRs.