i just got a 1991 2.0si prelude and it sat and ran for a little bit but after i drove it for a bit it wouldnt idle. and it still wont kinda just dies tach just drops slowly. and driving a 5 speed that wont idle is kinda hard. anyway any ideas would be good i have checked for messed up wires and loose vac lines but i have came up with nothing and there is no codes in it. thanks