2jz Vvt Ftl!!!!!!

[dori dori]

Hey Guys, just trying to find out more infor for my 2JZ VVT-i engine and hoping you can help.

Aparently Haltech can't vary the intake cam and feel that its a mechanical problem and nothing to do with the ECU side of things.

I have pulled out the solenoid and put 12V to it and it triggers the pluger fine. I then refitted the soleniod with the engine running and applied 12V again thinking that the engine would want to stall. This did not happen - it ran fine. I've been told by a mate who knows his Toyotas that if it didn't want to stall the solenoid is busted and to buy a new one.

Anyone care to comment on my findings? I have no issue buying a new solenoid they are cheap from Castle Hill Toyota and they even have one in stock

But if this doesn't fix it i'll be less than impressed.

Cheers

[Draven]

dude - your best friend in the whole world will be the UK supra forums. those guys know a LOT about the vvti 2jz-gte engines (as they got them locally delivered)

[ed]

why on earth would engaging the vvti want to stall the engine?? wtf?!!

and perhaps you should rename the thread 'Haltech FTL'

[cambelt]

Thats the the way Lexus trained people are taught how to do it , Its even in the Lexus workshop manual , apply battery voltage to the solonoid , the engine should run rough or stall
Dave

[ed]

ok - post edited

but i stand by my scepticism - all that enabling the vvti will do is open up the overlap and allow a bit of leak down and blow through. sure as shit ill be suprised if it stalls

[teamdrinkalot]

Apparently the solenoid is energised during cranking of engine to allow more breathing for start up, once the engine fires upo it is turned off and than re-energised at approx 4000rpm.
Since you have VVT-I, the standard computer uses the rear camshaft angle sensor to vary the operating times of the solenoid.

[Vios-GT_07]

Apparently the solenoid is energised during cranking of engine to allow more breathing for start up, once the engine fires upo it is turned off and than re-energised at approx 4000rpm.
Since you have VVT-I, the standard computer uses the rear camshaft angle sensor to vary the operating times of the solenoid.

are you 100% sure about this?? i'm looking at a similar VVT-i problem and this would answer part of the problem.. please confirm thanks !!

[teamdrinkalot]

are you 100% sure about this?? i'm looking at a similar VVT-i problem and this would answer part of the problem.. please confirm thanks !!

Go to www.billzilla.org/vvtvtec.htm

[Enchanter]

I believe VVT is an on off type of switching where as VVTi is continuously variable. VVTi is far harder to control and I dont know of a 2j with the simple VVT, only the VVTi.

Edit: The Haltech can probably only control VVT.

[Draven]

that would be because they only came with vvti

[Billzilla]

AFAIK at the moment there's only two aftermarket ECU's that'll control VVT-i.
Motec M400/600/800 and Autronic.

[Draven]

what he said ^^

[CrUZida]

Wolf V500 can do it.

Won't be long before Adaptronic can too.

[Draven]

and who buys something with a 2jz-gte vvti and hooks up a wolf to it?

[ed]

wolf v500 is getting a serious look-in to run the 1uz

very very impressive piece of equipment