BigLsc400

Hey guys! I had a question about my ‘93 sc400. While driving the car, going about 40-45 cursing, my car starts to slightly buck and as i let i comtuine it gets worse and worse. I’ve done some resarch on it and it seems like it could be anywhere from an ingnition source to the tranny cable. Also while around halfway on the accelartion pedal, between 3-4k rpms, it hesitates really bad. Was wondering if these were common issues or if anybody knew any info. Its also throw a lean code if that helps at all. Thanks!

Will edit of a video of both when i can