Just my opinion, BUT........a few years ago I helped out a downtrodden fried by buying her an old Nissan sentra(mainly so she would stop drivin my Toy), and after she moved she called me up cryin cause it ran fine cold, but lost power and would only go 20mph once it warmed up. I checked it out and her cat was plugged up and wouldn't allow it to breath adequately once the choke opened, hope it helps, Nate