Auto is Stalling Q?

[habro]

I've got an Auto v6 VP sedan and over the past week it's stalled on me 3 times (never done it before) while I've been driving along. Twice on the freeway at 100kmh and once while puttering around a carpark. All 3 times it's failed to start again straight away, the engine cranks but it just won't turn over. Give it a few minutes respite though and I'm on my way.
And a couple of other times I've noticed down the freeway the engine has kind of cut-out for a fraction of a second (as if about to stall completely) but it quickly cuts back in and I'm on my way. No spluttering or anything, it's just like when you're in a plane and hit an airpocket - like cruising or something.
Anyway, checked my codes and the computer isn't registering any faults - seeing if you people have any thoughts?

[Boonz]

fuel pump is on the way out

[mouce]

Check your earth connections, leads, coil packs, plugs, fuel pump, fuel filter and crank angle sensor.

[habro]

Hmm makes sense that there'd be no error code - but I thought if the Fuel Pump was on the way out the car would be riding rough and spluttering a bit - but it's been 100% smooth like always. (note: I've never had a fuel pump go out on me so just assuming)

[habro]

Check your ...crank angle sensor.

How do I go about that? What would I be checking for? May as well ask... what does the CAS do?

[genIIIbandit]

dont forget to change fuel filter at same time bro

[Ultima RB]

My VN is showing the same problem. It'll just switch off whilst driving along. I've previously had ignition problems and replaced coil packs, module, fuel pump, CAS's and 18 months after i'm getting this problem where it'll switch off for no reason.
When it first did it I got an error code of 42 (spark timing), however the car has still stalled and not thrown the code again.

Cranks Angle Sensor (CAS) is located behind the harmonic balancer (crankshaft pulley). The balancer has fins which pass through the CAS. The CAS receives a signal of the position of the crankshaft and sends a signal to your ingnition module to fire a spark at the correct time. The CAS usually fails at high temperature. When it dies, it's hard to restart the car unless you cool down the sensor.

As for checking it, it needs to be aligned properly. Otherwise the fins will hit the plastic and stuff it.

Your right about fuel pump, if it was the culprit the car would splutter. To simulate this you can pull the fuse and listen to the rough idle before the engine cuts out.

[Fully]

put a couple of litres of water in the boot next time it stalls on u, just pour the water on the CAS and if it kicks straight over it would probably be that.
had the same prob about a month ago.

[habro]

Had the RAC out and he used the airhose to blow away any dirt, car worked after that so dunno - maybe the CAS or maybe just the dirt. I guess if I brake down again then it's the CAS. Just odd, I thought it'd register an error code

[bush_basha]

check your wires around the coil pack i had a vn 6 that did the same thing, and i would wiggle the wires goin into the coil pack and most of the time it would start straight away.