Hello everyone I'm in the middle of doing a b20 swap into my integra automatic trans 1998. Everything is stock except the motor. the engine turns over and will drive. But not smoothly the engine has a high idle and it shifts into drive and reverse. had a small vaccum leak cleared that it was at 3000 idle brought it down to 900-1100 range I'm going to clean out mass air sensor throttle body and control valve I'm wondering why my trany hits so hard. Will the b18 tranny work on a b20?