I'm having problems with my RS 2nd Gen Eclipse with a 420a I use nothing but mobil1 10w-30 and lately im having really low idles on a cold start but today after I got off work my car would crank up and then die instantly over and over agian until I left it in neutral and held my gas pedal down to 1k rpms. Just wondering what could cause this on only cold starts where the car has been sitting outside.

Any and all helpful post are appericated.