Stutter while accelerating

Sounds like it to me after I read your op. It's that thump, thump, thump as you step on the gas and no power, hoping to make it home. I replaced the fuel filter at the same time I changed the injector. I was curious if the fuel filter caught much over the years so I back-flushed it before I got rid of it. Man, the amount of gunk in that filter was crazy. I'd change the filter also if you haven't already.

 

Ok then I will probably change the injector next and see if it fixes the problem, Thank you all for your help.

 

I changed the cylinder 4 injector today with an aisen oem injector and it was doing fine, it sounded better and had more power but still lacked a little.

But when i started it up again an hour or two later it’s misfiring really bad again and there’s no cel. It’s shaking really bad at idle and just sounds horrible. I have no idea what to check anymore.

Also there’s a strong smell of un burnt gas in my exhaust.