Car randomly stalls while driving, at low rpm giving gas or at high rpm giving gas. I have put a brand new fuel pump in it few days ago and still does this.

Car sometimes just cranks and cranks and cranks, I have to turn key off then back on for car to start and it will fire right up.

I don't know what else to check?

Has new fuel pump
new fuel filter
new ignition switch
new spark plugs
checked all fuses and replaced all relays
cleaned the engine ground
cleaned out throttle body
checked for vacuum leaks
cleaned out oil air separator
ran seafoam through vacuum to clean out injectors

Car has no check engine light and it doesn't get one when the car stalls. If I am going fast enough I can just turn key off then back on and it fires right up since it is a manual transmission.

Would a faulty Ignition control module cause this problem?
Would a faulty fuel pressure regulator cause this problem?

 

How can I test the fuel pressure regulator?

 

when it stalls i would have it checked for codes. of course i'm sure that you will not be around an auto parts store when this happens.

 

Put a new fuel pressure regulator on, didnt fix it. Took it back put the old one on.

Put a new ICM on the car, and the car runs like new! Its finally fixed.