Ok my is a 420a motor. It started to die on me randomly while driving with no notice in 4th gear or 3rd mostly sometimes at a stoplight it would just randomly die every 2 days or so and I would have to start it back up. A couple times it took a whole to start but now this last time it just cranks and hasn't started yet. It's electrical because I sprayed starter fluid in the i take and it didn't start. I changed coil pack and I just changed the cranksensor by having to rewrite a new one in because I bought from oreilys but I am positive I did it correctly but the car still won't start what could it be? Remember te car was dying randomly before this happen maybe that's a hint of whats wrong