VY V6 not starting

[Henderson576]

Hey guys, I've read several posts on here and nothing has helped with my problem

Got a vy v6 was doing 100km then suddenly spluttered and then died and hasn't started since (6months) since, it just crank and cranks and tries to start everytime, like the timing is out... it's got spark fuel and air, I've done numerous testing, changed crank sensor, cam sensor, checked fuel pump,filter bypassed hole fuel system, fuel pump in bucket and lines hooked up. borrowed injectors rail and reg still no change, changed plugs leads dfi Coil pack, still no change, coughs and splutters even on stard ya bastard, still hard to stsrt on it. I've checked wirings between the sensors and dfi module, I've added additional earth's, I've had 3 cars jumping it nothing, put bit oil down the cyxlinder to bump compression nothing, tried both the keys for immobiliser nothing, it's honestly just seeming lime the ecu has cacked it, but any other suggestions please, this has got me stumped as a hd fitter, had a lv mechanic mate and he's stumped, no fault codes, no nothing

 

[lout]

throw a noid light on injector and see if you have flashes when cranking

 

[Henderson576]

Don't have a noid light but have removed the rail and cranked with it removed, had injectors firing and good fuel pattern

 

[Crunchy Granola]

Hey guys, I've read several posts on here and nothing has helped with my problem

Got a vy v6 was doing 100km then suddenly spluttered and then died and hasn't started since (6months) since, it just crank and cranks and tries to start everytime, like the timing is out... it's got spark fuel and air, I've done numerous testing, changed crank sensor, cam sensor, checked fuel pump,filter bypassed hole fuel system, fuel pump in bucket and lines hooked up. borrowed injectors rail and reg still no change, changed plugs leads dfi Coil pack, still no change, coughs and splutters even on stard ya bastard, still hard to stsrt on it. I've checked wirings between the sensors and dfi module, I've added additional earth's, I've had 3 cars jumping it nothing, put bit oil down the cyxlinder to bump compression nothing, tried both the keys for immobiliser nothing, it's honestly just seeming lime the ecu has cacked it, but any other suggestions please, this has got me stumped as a hd fitter, had a lv mechanic mate and he's stumped, no fault codes, no nothing

On some engines when this happens it turns out to be a damaged crankshaft/Pulley keyway that allows the crank to spin inside the camshaft pulley slowly advancing the ignition timing over time until a no go situation happens. Thing is I've never heard this happening to a Holden V6. Has any work been done to the engine recently?.

 

[Henderson576]

Nah only work was general servicing, other then that it used to run like a damn dream, 250k kms

 

[lout]

remove a spark plug and check for spark when cranking

 

[Henderson576]

remove a spark plug and check for spark when cranking

Done that, was one the first things I did solid strong blue spark jumps about 25-30mm

 

[lout]

check all of the spark plugs for spark

 

[Henderson576]

check all of the spark plugs for spark

Did that, when I checked for spark , all cyclinder have spark new lead and plugs Coil pack and dfi the spark is there and strong, fuel the same thing it has fuel, it's injecting fuel. Have tried a bypass vircut with different injectors rail and reg same outcome, it's got everything there to run but it just doesn't, it's trying to start u can here the engine firing, it's like its skipped timing

 

[Jeda]

When were the timing chains last done?