2001 Chevy Impala P0300 Misfire

It's always a struggle when multiple sets of hands have molested a vehicle and now it's my job to try and make it right. These poor folks just need a decent running car and have let some kind folks "help" them along the way. The parts cannon has been fire at it, the $$ light is on, it runs like poo and we're gonna fix it. Videos are for entertainment purposes only. I do not assume any liability for injury, unsuccessful repair, etc. Please follow manufacturer guidelines and safety precautions. I always encourage constructive discussion in the comment section but abusive or insulting language will not be allowed. Thank you for watching and for all your support. S&A Auto PO Box 414 Staten Island, NY 10308