VL Turbo Not Starting....

[HÝPÕ-5L]

A few of these threads have been made i know, but iv read and did a bit is searching for what could be wrong with my car.

I ended up finding what it was which was the Crank Angle sensor, which seem to be really common......... anyway got that changed when to fire the car and she fired and ran like normal so i turned it off thinkin the Promlem was Solved.......... So i though.

Went to go fire it up again and she started but running really rough then conked out, Went to start it agian and nothing it just keeps turning over........ I thought it could of been out of fuel as it was getting low, put $20 into it........... still nohting, still just turning ova. But this may seem odd but if i left the key on acc's after tryin to start it, it would turn ova, like start out of no where then do it a few second later, like it was still on and wanted to run. kinda hard to explain.

anyway after a few goes i managed to get it to fire and like befor running really really rough.......... it did idle but like it had a slight miss or the timeing is out............. Im still thinkin its the timeing coz everything else is correct and the car did start and run but very rough like the timeing is a bit out.

when i did the Crank angle sensor i changed it with the dizzy still in the car, i marked where the little squar was on the disc to get it lined up right again, putting it back on it went in the exact same spot...... maybe i missed something but from me doing that could it require to do the timeing again?

Hope this explians my issue/problem and hope someone could give me some help.

Cheers

[Nackerz]

Hey mate

Sounds to me a few things could be wrong.

That disc if it is damaged in anyway, it will make the car runs sh1t or not at all. The CAS could of been a dodgey one. When you leave the dizzy in you dont need to touch the timing as it will not change.

You "MIGHT" of put the disc in back to front, not saying you did but could be a possibility. It can only go one way. And with the groove on it for the shaft, it could be the right way front out or could be the wrong way front in.

Back to timing, if a cas dies and replaced without moving dizzy, the timing will be where you left it as that disc has several slots which the cas reads, when the cas reads the disc it then returns it back to the ecu.
Now the ecu might be your problem also, as if its dodgey and not working properly will make your car run really really sh1t or not at all.


Its all in process of elimination.
What i would be doing is:

Pull your kick panel of to get to the ecu, turn ignition on and check if the 2 leds light up or flash. If they do then this is all good.

Ok so ecu not lighting up, Have you got another ecu you could try? plug it in and see what happens!

Ecu working, your next step would be
Back to your dizzy,

Pull of your dizzy cap, rotor, turn your metal disc around and clean it, put back together and see what happens, if i coughs and farts well you know the disc is in back to front, turn it back around and make sure its mickey mouse clean. put back together and try again.

Fails to start.
Change the CAS with another one.

Another problem could also be your battery has not got enough charge in it, enough to turn it over but not enough to fire. Yes i have had this problem and its a pain in the arse as it startles you for awhile and annoys you.

Try these and see how you go

[nasty1]

you may have to set the motor to tdc as well as the head.evan thoe you pulled dizzy out and think it went back in it may have gone in one notch difrent if you get what i mean

[seans VL Calais]

easiest way is turn motor over to top dead center, pull cap off and make sure the rotor is pointing to no 1. this will give you a rough indication of if your timing is right, if its not pointing to no one take the dizzzy out and you will see there is 2 dots on the dizzy to line up. then put it back in at no one. then try start it and if it wont start try playing with the dizzy giving it more or less timing untill it starts then chuck the timing light on and see where its at.

[nasty1]

the crank does two revolutions to the cams one or the other way around i cant remember.so 50% of the time you set the crank to tdc but the cam is out if that makes sence

you have to put bottom end to tdc then take top timing cover of and make sure cam is set also

[Tree cutter]

Try another coil lead on it .I had a HZ holden that would only run when you held the key on a bit and it ended up being the coil lead broken. You could have upset it when you took the dizzy cap off.

[seans VL Calais]

or take no one spark plug out and stick a screwdriver down to feel when piston is coming up when you are coming around to top dead centre on the crank and the piston is coming up you are on top dead centre. what ever is easier for you to do. depends what tools you have at home

[HÝPÕ-5L]

thanks guys well the process of elimination starts tomoz ill post up how i went

[Nackerz]

i dont know why you guys are talking about timming still for as he has said in his first post he did not remove the dizzy

so that says that the timming is still in the original spot and correct

[HÝPÕ-5L]

what do i use to clean the disk??? Also is there a way to tell if the disc is upside down or not? Cheers

[vn_v6]

had this problem on a vr, they gave us a series 2 pulley for a series 1 engine, it ate the cas away.....take it off and see if its chewed

[HÝPÕ-5L]

OK so im now confused big time, went out to the car this morning tried to start it and it fired 1st go i was like ummmmmmm ok cool the prob fixed its self ova night, took it for a spin drive like normal, ideled normal and really smooth, got home turned the car off turned it back on to see if it would start again and she did i was stoked didnt have to touch it.

So went in side cleaned the house abit which took id say about 20mins not even, went back out to the car to go pick up something and the car wouldnt start angin just keeps turning ova.......... WTF?

[VN_Luke]

how's the connector to the CAS looking for corrosion and dirt?

[HÝPÕ-5L]

its clean, i cleaned it when i put the new CAS in.....

[VN_Luke]

Well because it's tempromental, you know it's a wiring/electrical/sensor issues - if it wa smec hanical (i.e. dizzy out of whack - it would be consistant).

Do you know how to check the error codes in the VL ECU? (there's a detailed set of instructions if you google around)

This will point you in the right direction..

[HÝPÕ-5L]

Thanks guys for all your input....... but it cam back to the CAS. The CAS i had put in was no good either so i took the one out of my other VL and she fired on the 1st go, took it for a spin to my mother inlaws and it started again, so its all fixed.

[detox_nath83]

bloody CAS, they r fu**ers i tell ya..
good to see all is fixed now, i have been through a few in 9 years and AFM's as well....
gotta be carefull with second AFM's and CAS's as these parts are going on 22 years old now...

[Tree cutter]

Glad to hear it started so you could get away from your mother in law. LOL Things could have got real nasty.

[Nackerz]

yeah mate i was going to say its a dodgey cas as i had one sometimes it would start and other times it wouldn't start and it was tempromental. just use a clean rag to clean the disc but very gentle as they are fragile.

I was going to say something else but got distracted will think of it tho and tell you