I make a special tool to soak and unblock a stuck Fuel Injector on my Mitsubishi Lancer Evo 6 TME with the Ralliart special sticker pack. Its a 2000 model JDM Evolution Tommi Makinen Edition which has been sitting too long after restoration. I made a special tool to fix it with stuff I had laying around in my home workshop. There is a detailed Fuel Injector Troubleshooting video on my channel and I show more details about making this injector cleaner too. Comment and let me know what you think!
Watch my longer Fuel Injector Fault Finding video here: https://youtu.be/H_-bahczBpM
You should always back flush it first then spray it forward
Do you need to program injectors it you clean them or put new ones
This gave me another task to add on the yearly tune up list, I do on my car.
I did similar but removed the fuel pump relay, removed the fuel hose to the rail and plugged a hose connected to carby cleaner spray. Started the engine the car ran on carby cleaner for a minute before it struggles turned it off. Put everything back and done