Does Fuel Injector Cleaner REALLY work? IF you think so, which one is the best one. I think I may need to put some in my wifes Honda Passport. When I come to a full stop, the car seems to buck a little bit?? Just trying all options, THANKS and HAPPY HOLIDAYS....

That crap doesn't work. We sell it to our customers as part of their major services so it looks like we do something special. Waste of money, most of the chemicals out there are based on Techron. Just go fill up with Chevron super unleaded and you will get the same detergent.

is there ways of checking to see if my injectors are clogged?

Ive been told that injector cleaner will break lose varnish inside and can create more problems. One of my wifes cars was doing as you described. I started puting NOX-ICE additive in the tank on every fill up, and it really made a difference.

I have been looking on-line and cant find NOX-ICE? Where is it available?

Try BG-44k.

Recently when our G-35 99 Chevy box van broke down the mechanic used some stuff called Conklin 4-Power injector cleaner and it did the trick.
After a while all the injectors were working so it must work.
(might not work in Dodge Studebakers)