Wells EVS103 EGR Valve Control Solenoid EGR vacuum solenoid works with the on-board computer to provide a calibrated vacuum source for the EGR Valve When not replaced, vehicle may experience excessive flow or non-functioning EGR Valve, failed emissions test, surging at highway speeds and/or hesitation Designed to meet or exceed OE specifications in form, fit and function Global coverage for import and/or domestic applications