It has a built in regulator so you can smoke test your evap system without damaging it. smoke machines for cars can be used to find leaks in the power steering system, a/c system leak, evap system ...

it illuminates the “check engine” light. Mechanics can read a trouble code to trace it to a leak in the evaporative emissions system or the sensor. Fixing an evaporative leak may not require ...

The evaporative emission control (EVAP) system is designed to store and burn fuel vapor. Fuel vapor consists of hydrocarbons ...