This is the result of using Seafoam on my Pontiac Grand Am SE 2.4L. I first sucked down 1/3 of the bottle using the small hose connecting to the top of my fuel pressure regulator. I made sure to give it a little throttle so the engine wouldn't die. I then turned my car off and waited 15 minutes. I turned it back on and let all the carbon buildup come out my exhaust for about 15-20 minutes.
Seafoam, 2001, Pontiac, Grand, Am, 2.4L