Engine flatspot

[calais24/7]

As the title suggets my engine has a flatspot. It's only when you slightly accelerate. Its also sometimes a pain to take off in becuase it coughs a bit. My heater controls arn't connected to so im wondering if the vacum has gone crazy or what other possible causes?
Cheers

[soop]

That or your ignition system is getting old and lazy.

[detox_nath83]

dirty throttle body man and intake runners..
Pull of plenum and throttle body and flush it out it will have crappy blowby built up in there.
i had this b4 i went turbo and done this and it fixed it...

[calais24/7]

i have bigger problems now i was on the way home and the car just shut off. Im 99% certain its the fuel pump. Becuase it doesnt prime wen you turn the key like it usually does. Anyways back to topic. Can i just squrit a whole heap of throttle body cleaner into it :P ?

[nathanVY]

i have bigger problems now i was on the way home and the car just shut off. Im 99% certain its the fuel pump. Becuase it doesnt prime wen you turn the key like it usually does. Anyways back to topic. Can i just squrit a whole heap of throttle body cleaner into it :P ?

That sucks, have you tried kicking the tank? sometimes they start back up again and run long enough to get them somewhere.
No take it apart and clean it properly.

[calais24/7]

That sucks, have you tried kicking the tank? sometimes they start back up again and run long enough to get them somewhere.
No take it apart and clean it properly.

No but i kicked other things . Im pretty sure its the external pump becuase as i said it doesnt prime anymore so somethings going on back there. I'm going to have a look soon

[soop]

There is two pumps on the VL isn't there?
an internal and external?

[nathanVY]

There is two pumps on the VL isn't there?
an internal and external?

o.O didn't know that haha

[calais24/7]

yehh sure is. Ive been through 2 internal pumps already. Just about to jack it up and have a look at whats going on. stupid cars

[calais24/7]

Well that was weird :S i jacked it up by the diff and then something made me turn the key to acc and heard the pump . So i htough okay this is weird.. turned it on and it started NFI what happened but i'd like to know cause i don't want it to stop in a random place

[detox_nath83]

could be the contacts on the pump man pull em off and put some inox or wd40 on them and put em snug back on.

[calais24/7]

thanks man i will do that tommorow. Yet another dam problem. Passenger side footwell had water up to the kick panel. Im really thinking of fixing everything and selling this

[jatsvl]

could be the contacts on the pump man pull em off and put some inox or wd40 on them and put em snug back on.

I agree,
the contacts to the pump over time come loose, possibly because of location, I have taken mine off and cleaned them and squeezed the female spade connector to make it tighter on contact.
the throttle body is dirty, and as nath has said take it off and clean it good! you can open it , squirt cleaner and scrub with a toothbrush, BUT your problem will re-occure soon.
water in the foot well, is from the A/C drain pipe is blocked or (if it has been raining) from your windscreen leak or antenna socket.
post which one and someone (probably nath) will direct you to a fix.
don't sell the vl man! they are way before their time and will out perform MOST MODERN cars, in running and repairs.

[calais24/7]

thanks man ! Okay with the whole cutting out thing the clock was also reset which i found strange. It's not the little drain things on the side of the cowl panel i have a feeling its the windscreen leaking. While thats true it also has extremely loud lifters and less poke then normal rb30's But i do agree with running costs and tbh it has been pretty reliable but i still wouldn't mind a vx or something

[detox_nath83]

well man all i can say is... if u r getting water in the passenger foot-well. ur screen seal is leaking as Jatsvl Said above... now u gotta b careful caus in the passenger kick panel is the ECU(Engine Control Unit) and water can and will run through this sucker and caus all dramas..
so either fix your screen leak and rust or drill a couple of holes in the foot-well to drain it (temporary fix,don't stop the screen leak though just the moldy smell lol, don't worry nothing is under the passenger side u can drill into like fuel lines and brake lines this is all drivers side)

As for lifters being sticky..... this is cured by regular oil changes and not letting the engine accumulate sludge i do mine every 5000kms and use good oil. now it is not recommended to use engine flush on older engines as the carbon deposits are basically a seal in some parts of the engine and cause leaks, as it loosens off large deposits and can block your oil gallerys and pump impeller and cause dramas and even catastrophic engine failure. but i flush mine every oil change...

Now u saying less poke....
So here we go i guess
Plugs,leads, Fuel filter, Air filter,Vacuum leaks, and vac hoses in engine bay and even air controls behind dash for feet demister,face etc, the slider control as this is vacuum controlled) Dirty throttlebody(TB)/intake runners, air leaks after AFM - TB, Timing (15 degrees is factory) crappy cheap fuel, dirty/pitted/chalky dizzy contacts(inside cup) coil on its way out, AFM not adjusted correctly (see my sig below) Air reg, AAC (auxilery Air Control valve, mainly idle issues this is responsible for is dirty) bad electrical contacts throughout engine. (go over all u can see with contact cleaner or INOX. TPS (throttle position sensor) out of alignment<-- (Rare)...
Where to start u say..........?
The cheapest first
Goodluck man sorry for long post... haha few beers as usual
u will nail it.

[calais24/7]

haha appreciate it man. Yeah im aware of the ecu being behind the kick panel. I have a feeling water did get to it and stuff around with it. I'm missing the corner window seal the little black plastic thing so i'll try sikaflex and see how i go. WIth the ticking lifters i change my oil probly before 5000k becuase i know it cuases build up etc but its to late im pretty sure. It was already ticking when i bought it. Iv'e done plugs leads filters etc only about 6000k's ago so it definatly shouldn't be any of those. And yeh i think it could may be the vacuum, cuase the heater controls are a bit funny, when you slide it up and down to change between hot and cold there's somethign disconnected or something. I'll have to have a play around but this car is ust giving me the absoloute shits