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How To Test If Vvti Is Working; I know it is silly question....
Topic Started: Jul 6 2010, 06:49 PM (2,088 Views)
AltezzaFanatic
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Stock
[ *  * ]
Guys,
How can I test if VVTI is working ?
1) I thought of unpluging the socket at the VVTi actuater and then
test drive the car?. To see if I feel any difference.
Will this cause any harm to my engine?

Any ideas.

The reason this has come up cos on dyno I have lost close to 10hp
compared to last run 1 year ago.

I do feel my car has lost some power.
Usually around 4,000rpm there is a surge and slight change in engine sound.
Now cant feel the change over.

So was wondering

This is the details of my ride

SXE10 2003 model Auto
Motul 5W-30
Exhaust system stock.
K&N Panel Filter
Dynojet Powercommander.
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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Lharris
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Lexus Diagnostic Technician
[ *  *  * ]
if it wasnt, you'd get an engine check light.


replaced the fuel filter at all? could be partially blocked? also you can get differing dyno results from day to day. i possibly wouldnt be so concerned about it
Need Service or Repair work done? Send me a PMS

More TRD parts then you can shake my dick at
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Soiled Altezza
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...
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and differences between dynos if you're not on the same one.
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Garage: http://altezza.dualzdesigns.com/viewcar.ph...wner=17&frmpg=0
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cpufix
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Paraparaumu, Wellington
[ *  *  *  *  *  * ]
You should know if VVTI is working or not as you say at the magic RPM point it should surge, you are saying its not surging.

If theres no engine alarms do the normal clean MAF and IDLE sensors perhaps throttle around the idle sensor.
Clean K&N Filter.

You say its dropped 10HP over one year so has any servicing been done ?

Time to visit a good Altezza service technician
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Leiden
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NZ, Whangarei
[ *  *  *  *  *  *  * ]
Definately do a MAF clean and an ECU reset, if the VVTi wasn't advancing it would give a check engine light.

Think about what you've changed since then and now, otherwise it may just need a DIY service
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AltezzaFanatic
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Hi Guys,
Thank you all for the reply.
Recently I changed the following
1) Engine oil and filter
2) Gearbox oil Type IV
3) Fuel Filter
4) Cleaned MAF sensor
6) Cleaned the throttle body.
7) Spark Plugs
9) Cleaned the K&N.

I suspect the oil control valve filter may be partially blocked.
At one time I went for 20,000km without oil change. This could be the culprit.
Apparently there is a small filter......

What do you guys think...

Pls refer to the link for the diagram of this part.

http://www.toyodiy.com/parts/p_J_2005_TOYO....html?hl=15678A

2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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AltezzaFanatic
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Stock
[ *  * ]
Hi Guys,

The Part No is 90430-37140 : Filter, Oil Control Valve.

My understanding is VVTi work with certain degree of oil pressure.
If there is a filter which is partially blocked then the pressure my not be enough
to advance or retard the cam timing.

Now all this is just guesses and theory. Will go down to Altezza Specialist this week to find out if this is the problem.

Anyone here seen how this part look like.?
Anyone here have replace this part before?

According to the diagram it is near the cam pully. <_<
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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Lharris
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Lexus Diagnostic Technician
[ *  *  * ]
That filter is easy to replace. But the chances are if that's full of gunk then the cam pulley probably will be too. Which means you'll have to replace it. They can't not be pulled apart and cleaned.
Need Service or Repair work done? Send me a PMS

More TRD parts then you can shake my dick at
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Leiden
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NZ, Whangarei
[ *  *  *  *  *  *  * ]
Lharris,Jul 7 2010
08:53 PM
That filter is easy to replace. But the chances are if that's full of gunk then the cam pulley probably will be too. Which means you'll have to replace it. They can't not be pulled apart and cleaned.

Wouldn't the filter just be pointless in that case, I'm sure its there to catch any grab that gets past the oil filter before it reaches the Cam Pulleys... :blink:
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Lharris
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Lexus Diagnostic Technician
[ *  *  * ]
Leiden,Jul 8 2010
05:32 PM
Wouldn't the filter just be pointless in that case, I'm sure its there to catch any grab that gets past the oil filter before it reaches the Cam Pulleys... :blink:

Ok, I clearly know f@ck all and have no experience with Toyota/Lexus vvti.
Need Service or Repair work done? Send me a PMS

More TRD parts then you can shake my dick at
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E910
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MOTUL 300V
[ *  *  *  *  *  * ]
No need to be a knob, Leiden's raised a valid question. Maybe you could explain how/why the stuff that should be caught by the filter gets past? Is it only a bypass filter?
アルテッツァ RS200-Z 6MT
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greeneyes
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Targa Master
[ *  *  *  *  *  *  *  *  * ]
The filter will stop particles of a certain size, and the certain size gets smaller as particles partially block the holes.

However tar will go through and deposit on the metal surfaces all over the engine, and just like fat in your arteries this sludge hardens and blocks oil flow.

The KE70 motor was disgusting inside! The new bearing jammed on the crank becasue of the ridge of sludge beside them. I hadn't planned on pulling the crank out but I had to send it off and get it cleaned, I couldn't get it clean enough at home.

Take photos for us if you pull the filter out, but I don't think it will be blocked unless the inside of your engine is black and gunky.
The Girl's KE70-
http://www.rollaclub.com/board/topic/42407-the-girls-ke70/
How NOT to build a rally car-
http://www.rollaclub.com/board/topic/64027...ld-a-rally-car/
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Leiden
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NZ, Whangarei
[ *  *  *  *  *  *  * ]
Lharris,Jul 9 2010
06:31 AM
Ok, I clearly know f@ck all and have no experience with Toyota/Lexus vvti.

Chill out bro, I was mearly raising the question of why Toyota bothered to put a filter in there in the first place if it just let crap pass through into the VVTi pulleys.

But they can be rebuilt, I've seen one apart getting shimmed for larger cams to reduce the amount of advance to prevent interference with the pistons. You need a Jig to line it all back up though.
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madaltezza
Sleeper
[ *  *  *  *  *  * ]
ok if you worryed about the camgears been blocked with sluge or what ever put a oil flaush in the motor and run it for a hur or so dont drve it just ildel and change oil and filter and the vvti filter you have to thake the cam gears off to change the vvti filter
as it in the front cam caps you can drain the oil out of the cam gears and spray brake clean thogh them of somthing like that. DO NOT PULL THE CAMGEARS APART unless you have the jig to put them together again. After that is done do a 1000 to 1500 km and change the oil and filter again hope that helps and makes sence im not good with typing ect i just fix cars lol :P
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AltezzaFanatic
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Guys,
Will go to the mech tomorrow to to clean the filter. Will take some pics for the benefit of the members here. I spoke to the altezza specialist and his view was if you change oil regularly like every 5,000km then shouldnt have any issue with filter being blocked. But in my case i have gone more than 20,000km without an oil change so there could be a possibility of a blockage and there isnt much oil pressure to fully activate the vvti. Any will update the findings soon...

Btw same time I am installing TRD Yellow ARB. Will write about the impression as well.

Thanks guys for all your support......
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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RS200Faker
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Perth Australia
[ *  *  * ]
i highly doubt running 20k on yur oil would cause any blockages.

problem is somewhere else im betting
2002 IS200/RS200 Blacktop Beams, 6 speed, Apexi Power FC, HSD coilies, TRD swaybars, ATS 1.5-way LSD 4.8:1
NOW FOR SALE - $15.4k
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AltezzaFanatic
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RS200Faker,Jul 9 2010
11:14 AM
i highly doubt running 20k on yur oil would cause any blockages.

problem is somewhere else im betting

Hi
My mileage is 100,000km now...... and my engine is 7 years old.....
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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alimac
Member Avatar
Canterbury, NZ
[ *  *  *  *  *  *  * ]
Mine does about 12000km between changes, but that's every 6 months, and most of mt driving is open road.
Yellow RS200z 6MT
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AltezzaFanatic
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Stock
[ *  * ]
I will be going to the mech this thursday. Cant wait !!!!! Fingers crossed......
I hope the OCV filter is the problem otherwise back to square one. :unsure:

2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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AltezzaFanatic
Member Avatar
Stock
[ *  * ]
Folks,
Came back yesterday from the mechanic.
Opened up the Cam Pully and pulled out the VVTi Filter.
I wasn't very dirty. Cleaned it with some cleaner and put back.

Generally find the car more responsive......maybe just my imagination :D

I also installed TRD yellow ARB. The car handle like it is on rails... :wub:

Just want to ask anyone here has done Port and Polish. Do you guy think it is worth
the trouble?.
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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RS200Faker
Member Avatar
Perth Australia
[ *  *  * ]
port & polish imo is not worth it.
2002 IS200/RS200 Blacktop Beams, 6 speed, Apexi Power FC, HSD coilies, TRD swaybars, ATS 1.5-way LSD 4.8:1
NOW FOR SALE - $15.4k
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