spark issue :(

[SikVScommi]

Hey ppl, my vl really hate's me i swear to god
I had issues with it idleing and running like shit under 3000rpm
so i sprayed the cas plug with wd40 and gave it a scrub and now i got no spark at all, not even from the coil when i shove a plug straight from it
Please any help would be much apprecated as i dont really feel like driving mums BA to work tonight lol

[mr031]

think you need a new cas and plug mate

[SikVScommi]

Yea thought so, sucks balls cos u-pull-it dont have f*ck all done there

[Jxw]

Yea thought so, sucks balls cos u-pull-it dont have f*ck all done there

it's hit and miss using a 2nd hand cas, may work but for how long? keep in mind they're 25-26 years old now and electronics subjected to that environment do wear out often.
i went through 4 2nd hand ones last time i replaced one before i found a good one
i'd get a new cas and bearing and replace it.

$77 http://www.ebay.com.au/itm/HOLDEN-CO...item2c60e57b40

[SikVScommi]

Thats a really good poin
But would that explain why it runs like shit until say 2800-3000rpm???
Aslo it really doesent want to stay running, if i was to let go of the throttle it will stall
Im rippin my hair out trying to fix the f*cker

[nasty1]

When i go to upillit theres always cass there.try a second handy before waisting money your really pissing in the wind guessing

[detox_nath83]

if u cant find one on a vl in a place like that get one from an R31 skyline as well as they have an RB30

[SikVScommi]

What u-pull-it do you go to, im in adelaide so i have to go to the elizibeth one on womma rd lol
yea ill have a look at r31 aswell, but do they have to same loom plug ??

[detox_nath83]

same engine mate.. RB30 im in QLD we dont have u-pull-it well have not seen any anyways

[Jxw]

they can cause lots of issues when they're failing, from as you described running rough at low rpm then coming good, running great down low then breaking down and backfiring at high rpm, running like crap all over the rpm range, no spark at all, easiest test is to throw another in and see how it goes, trial and error starting with the common things first.

spark plugs, dizzy cap, rotor button, leads, cas, coil, fuel filter, fuel pump, afm, fuel pressure reg all these can cause similar issues but the no spark now narrows it down



last cas i had fail was causing preignition at about 4200 rpm, had me stumped as i was retuning the ecu at the time and thought i'd put to much advance in that area, went back to a stock ecu and it was still doing it, ran fine, didn't miss a beat just the issue of pinging at a certain rpm at wot...

it went like this for a few months then it finally gave up, one of those i can't find the issue as it makes no sense, i'll wait till something else goes wrong and then i'll know what it is.

fixed all that and it was going great then winter sometimes when i went to start this car after fixing the cas and afm problems it'd turn over and not fire, no tracho movement, no spark, fuel pump would initially kick in then stop, 5 minutes later it'd go or it'd take till the next day to go, traced that to water in the ecu, now it's summer it's starting first go everytime.
has it been wet where you are lately? maybe it's water leaking into the ecu? can cause similar problems then it dries out and it's all good.

i've accepted mine is a $500 car with character and mood swings, reckon i'd be moody aswell if i'd done 450000 kms lol

also the tf rodeo's have the same cas if your going 2nd hand

[SikVScommi]

detox_nath83 chears for that info
Jxw, thank you for the run down on all the issues that these bloody motors always seem to break down on
I bought the car for 600 bucks and i thought it would be an easy fix, having cert 2 in auto i am fairly mechanical...but only being 17 lol
Next time im at the wrekers yard ill dack every cas i come across haha
I just want this bloody thing running right so i can turbo the f*cker and get back on the road

[nasty1]

Ive got about ten cass lol i always get them when there