Hey all, I just installed an EJ22EAWBPL engine, taken from a 96 outback legacy (manual), into a different 96 outback legacy (automatic) that previously had an EJ25DAABJL. When I start it up, the engine constantly revs up to 3K rpm, then drops a little, then revs back up. It will do this until it is shut off. I can't figure out for the life of me why it's doing this. Any ideas?