Vs v6 auto randomly stalling whilst driving

[VS_WPN]

I have a VS V6 Auto, i have recently change the heads (ported), lower intake manfiold (ported). About 3 days ago car started stalling randomly. When the car stalls it wont turn back on, i have to wait a while then it'll turn back on. The engine turns over but wont start. I can hear the fuel pump so thats working fine...NEED HELP!!!

[Chappo_1]

Sounds like the dreaded Crank Angle Sensor problem. Check for error codes. link to the how to below.
Checking error codes VR/VS (Revised)
Also, check out this thread, or perform a search, there are a few threads on the subject, but check for error codes before buying anything or pulling anything apart.
Code 46 and 47
Hope this helps.

[VS_WPN]

i've replaced that before..and i have no error codes =S

[frenchy87]

i have the same prob i have changed the cas but still keeps stallin i check for error codes but always get 12 so means all good wat do i do next

[greenacc]

i'd be replacing or check the DFI quick smart. If you can borrow a working one and put that in for a while you will soon see if that is your problem.

[Nobody Actually]

guys, had the same problem in my caprice, change the fuel filter near the tank.

[VS_WPN]

Just an Update It was the crank angle sensor. It wasn't getting one of the voltages.

[DannyboyDS]

Good job, the good old manual and a multimeter generally makes a quick job of finding the exact problem.