help asap vl not firing

[winton]

i got vl turbo and its cranking but not kicking over i recently changed the dizzy and coil to get spark but not happening what other reason y this would happen

[HARVZ-6]

checked the computer for faults?

[Skids_mate]

check ya crank angle sensor give it a clean mate.

[winton]

how do i cheak comp for faults

[Skids_mate]

ya need a workshop manual mate or get on google.

[winton]

yer i got the workshop manual

[HARVZ-6]

its in the engine management section mate,

easy to follow


good luck!

[Skids_mate]

go to the chapter problem diagnoses and follow it from there

[winton]

sweet as ill have a look through it... any other reason y it wouldnt be firing.. just keeps cranking and cranking and cranking

[HARVZ-6]

so it does have spark?

sounds stupid but how much fuel has she got? iv had myne a few times get so low it refused to start again..

[Skids_mate]

ya mite be better off just to get a new cas or one that wrecker nows it works and change it

[winton]

i recently put 10L of fuel in it i was driving away from petrol stration when i tfirst ****ed up.. yer i rekon i mihgt have to get a new cas.. could i tbe dizzy or coil? coz i got told it was that so went to u pull it and got em

[HARVZ-6]

just check and see if shes gettin good spark

cas sensor will generally stop firing all together..

with that much itd atleast fire so that rules out fuel..

[Skids_mate]

give everything a good clean ad let it dry out properly then put it all bak on give that a go

[holdenmanv6vrv6]

ill give ya $500 need to update to something newer

[winton]

add an extra 0 to that and id think about it lol

[VL Berlina 5speed]

have yiou got the dissy timming set correct?
by setting motor on tdc on compression stroke and rotarty arm too point 1


wheres a quick test, with your spare dissy plug it into the CAS plug and put the disy cap on with all the leads

turn the ignition on and turn the dissy by hand
this will cause the engine to spark at each plug depending where the rotary point is
will cause the injectors to pulse and the fuel pump to run

if you get no injector pulse park it means the CAS loom is not getting good signal to the computer hence no fire

try this first and work from there




just re read your post and def try the hand spining dissy
im thinking it could be the CAS plug/loom
normally these get brittle and corrode cause the car to die all sudden or start and stall

it the plug on top of the dissy, wiggle it while someone turns it over

[winton]

yer cheer man what u mean turn dizzzy around u mean just the cap? wont the leads be in the way to turn it around fully or

[VL Berlina 5speed]

have the dissy out of the engine but have the dissy cap on with the leads and the CAS and little earth cable plugged in

then by hand spin the splinned end of the shaft


my replys wont be quick as im watching top gear atm but ill try help you during the adds

[winton]

ok yer cool i get ya while someone cranking the car... what will this do should fire ay? if its getting spark

[VL Berlina 5speed]

wiggling the cas cable will see if the termals are connecting properly and allowing the car to fire

happened to me before in one of my old vls, died randomly and wiggled the loom and it ran till i hit another bump and it cut out
simplely i cut in another newer plug

if these dont connect well you will not get a good if any spark or injector pulse

[ADZcalais]

change the dissy model, most of the time its that

[detox_nath83]

also if CAS and AFM are fine could be possibly the Power transistor(Black Bit with T plug on dizzy) this works to switch the coil to produce spark.
i would lean towards CAS.
i had a problem a while back check my thread (vl not starting tried the obvious)
i came across it was the power diode in the loom near battery was corroded out and was turning off my injectors.(diode there for reverse polarity protection)
i have left it out and had no probs. as soon as i connect the wire where it was it shuts of injectors and stalls.

As for CAS plug pull back the rubber boot and check where the wires are crimped on to spade connectors. can corrode in there.
Do same with AFM plug spray both with Inox/wd40/rp7 etc
also what previous posts have stated check your timing
Goodluck

[winton]

oil smells like petrol!.. plugs black as!.. hardly any compression (havent done comp test tho).....rings gone maby??

[delcowizzid]

is the dizzy actually spinning when you wind it over and the cam may have snapped belt