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fuel problem

prjacksonau

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got a problem with my vn 5lt - when driving along motor just cuts out wont start for up to 20 mins unless i spray sum avaitation fuel up the airintake - have replaced fuel pump, filter oxy censer and in jectors are new can happen when motor is cold or hot - anyone got any ideas
 

delcowizzid

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could be a faulty ignition module or wiring as the ecu takes pulses from that to tell it when to fire injectors.
 

red truck

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My VN berlina wagon 5L had 2 pumps, one inside tank, one outside. Not sure about sedan though.
 

prjacksonau

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ok replaced the ignition module and still no go
 

anarklov3r

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If it wont start again for 20 minutes, could very well be the crank angle sensor. This is what happened in my car. Easiest way to confirm is to carry a bottle of cool water with you in the car. Next time it stalls, make sure it wont start. Pop the hood, and poor the cool water over the CAS (Crank angle sensor). Its located behind the harmonic balancer. You will see the wires come out from behind.

If it starts up after wetting it a bit and cooling it down, Theres your problem.

I got mine replaced for $150 i think? or was it $130? Either way the part is ~$80-90 from holden, and to change it the belt and balancer has to come off.
 

delcowizzid

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its V8 so doesnt have the CAS behind the balancer.does the fuel pump still prime when it wont start
 

anarklov3r

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Totally skipped over that first bit of the post.....

....damn skim reading.
 

prjacksonau

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yes you can hear the fuel pumps purring away when its doing it
 
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