Takes a little bit of use to. Few trials to find the proper way to hold onto the injector and kit as you're trying to also hold the can.
Take the little sprayer thing off the can. Exposing the little tip part underneath. The white plastic piece provided into the kit sits ontop of that. The connections provided to connect the injector. I changed. I put little mini aligator clips.
First backwash the injector by cleaning it backwards to try and get the dirt out of the little filter basket inside the injector. Then swap it around and clean your injector in the same maner it sprays out your gasoline.
When the cleaner comes out like a nice mist you have cleaned your injector. If it sprays drops or solid you have dirty injector or need to replace if you cant get to a mist eventually. But if you are doing this then you should know that already. Or maybe you are learning. Either way. No mist no go.
I took the battery out of my car and used it to do this. I use the fastest setting. I turn the power on and then press everything down on the can. Remember its a bit tricky to hold. I dont cut the power off till i have lifted the pressure off the can to make sure i empty the injector of all the cleaner.
I use carb cleaner for this. I dont recommend using anything else. The brand i used is kleen-flo. If there is a little cleaner left in there it wont hurt anything.
Its worked very well for me. My corvette runs great. So it defenately didnt do any wrong.
It was a cool purchase to experience and could save you a few hundreds on injectors.
Just be patient. Take it slow to find your most comfortable way to hold everything together. You will want gloves and towels. It can get messy as your gloves get wet its harder to hold everything together.
Once i found my way it was very easy and went very well.