AutoLine Pro Universal Gas Cap Adapter For Easy EVAP Leak Testing - Includes Fuel Flap Bypass Opener Cylinder - For Automotive Smoke Machine Leak Detector

Works as advertised. Saves a lot of time and hassle trying to find stuff to block off the fill hole. The only thing I don’t care for is the consumable sticky pads but I don’t know if there is a better alternative to those.

Great tool to diagnose those pesky OBDII codes. Mine was a P1456 and ended up being a broken hose on top of the gas tank. Would not have been able to find it without this tool.

Well made item. Does a great job sealing gas cap filler neck while performing Evap smoke test.

Great. Tool

Work great for different make of cars . And seal the filler neck perfect for a evap smoke test

This is fantastic, I’ve used it and it works well and is easy to use. This is my new toy. I don’t mind looking for leaks anymore. This is simple enough and gets the job done. I read through the reviews and read where one person was unhappy with it. All I can say is he must have been having a bad day. It’s a great easy way to test evap systems. Just need to know where to buy some more 2 sided disc to apply to the filler neck.

Great addition to the smoke machine

Must have for certain EVAP diags.