I have a 89 civic when the motor is at normal temp and i stop the motor feels like it wants to shut down when it is in gear. When i when i take it out of drive or reverse and put it nuteral or park it stops and idles fine. i have changed the plugs wires cap and rotor. but it still happens anyone have any ideas as to what might because this. it was recomended by a freind to change the coil and or the o2 sensor. does anyone know if these parts cause the problem.