Can a scan tool be used to test EVAP?
Can a scan tool be used to test EVAP? Some vehicles have the ability to be commanded with the scan tool to test the EVAP system for proper operation of all components, and can be used to help isolate which part of the system the fault or leak lies. Since they are fuel vapors, most of the EVAP leaks are much smaller than the eye can see. What are the critical leak spots in closed systems? Critical leak spots in closed systems are usually connections, gaskets, welded and brazed joints, defects in material, etc. A leak test procedure is usually...