Any one had success with a injector cleaner that works well at cleaning injectors, and does so with out removing the injectors? and/or maybe a injector cleaner system?

 

There is injector cleaner that you can use with the injectors still installed.
You turn off the fuel pump, disconnect the fuel hose from the fuel rail, connect a adaptor hose to the fuel rail, connect said hose to the injector cleaner tank into which you have put a bottle of injector cleaner, you attach compressed air to the injector cleaner tank to create "fuel" pressure and start the vehicle letting it run with straight injector cleaner going through the injectors.
Does it help, defiantly somewhat.
Does it hurt, not likely, just dont rev the engine to high or it can harm the catalytic converters.

There is also stuff that you can just toss in the fuel tank, no idea how much that might actually help.

In my opinion both of these methods are preventative measures that can be done with how often you clean your throttle body, but if my injectors were having flow issues I would just replace them.

 

A tankful of premium gasoline every so often helps keep the injectors clean.

 

Just watched Scotty Kilmer. Driving for an hour or two at 70 to 75 or faster will tune it up better than anything
he says. Makes sense to me.