Topic: How to Guide : 4AGE 20v Oil Control Valve

Hi Guys.

My 20v has been feeling a little under the weather lately and i have been trying little changes to try and isolate the problem. One of these changes included the replacement of the VVT Oil Control Valve. Here is a tutorial for the boys....

4AGE 20v Oil Control Valve

Position

The Oil control valve sits at the front left hand side of the 4AGE 20v cylinder head. The function of this valve is to control oil flow into the intake camshaft which controls the operation of the VVT mechanism. So the valve can either be open.....or closed.

http://www.zoopy.com/data/media/117070/thumb-640x640f.jpg


Part Number and Price


The Toyota Part number for the Oil Control Valve is 15330-16020 and it has a very minimal price of around R400 locally.


http://www.zoopy.com/data/media/117065/thumb-640x640f.jpg


The Unit

The unit should be stamped Toyota Aisin on the side.


http://www.zoopy.com/data/media/117062/thumb-470x470f.jpg


http://www.zoopy.com/data/media/117075/thumb-470x470f.jpg


http://www.zoopy.com/data/media/117069/thumb-470x470f.jpg



Symptoms for Replacement

- Hesitation on VVT activation
- No activation of VVT at all

You can test your unit by giving the pin outs direct current and listening to hear a clicking in the device (almost like a relay).


Replacing the Unit

The Following will be required :

- Size 10 offset spanner
- Size 10 socket and wrench
- Flat screw driver
- Size 12 spanner or socket

Step 1

Remove the pin connector from the unit by pressing down on the clip and pulling it out.


http://www.zoopy.com/data/media/117073/thumb-640x640f.jpg


Step 2

Use the Size 12 spanner or socket and remove the engine hoist bracket (the one that looks like a hook) thats on the right hand side of the oil control valve. This just gives you a bit more room to play with.

Step 3

Use the Size 10 spanner or socket and loosen/ remove the 2 size 10 bolts on either side of the unit.

Step 4

Use your flat screwdriver and gently pry out the unit. Just be weary and some oil may leak out at this point.


http://www.zoopy.com/data/media/117066/thumb-640x640f.jpg


Step 5

Replace old unit with the new one....and insert back the size 10 bolts and tighten


http://www.zoopy.com/data/media/117063/thumb-470x470f.jpg


http://www.zoopy.com/data/media/117074/thumb-640x640f.jpg


Step 6

Put on back the Engine Hoist Bracket (If removed) and Plug in the lug for the new Valve.



Easy as can be and at a very minimal cost as well.

Good Luck Gentlemen!

Corolla RXi 20v Blacktop                    87 RSi 4AGE 16v "DBN Stock"- 282Wkw @ 1.8 bar
TRD 0.8mm Head Gasket                   Turbonetics 0.63 A/R T3/T4 turbocharger
Yoshimura 270 cams                         Turbonetics Evolution Wastegate
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Re: How to Guide : 4AGE 20v Oil Control Valve

hey sam
can you feel a difference after doing this.
My solenoid can move from left to right
does your's also move

http://i210.photobucket.com/albums/bb152/VENOM1703/IMG00064.jpg
2000 Model Rxi Turbo - 0.4Bar 166wkw  251nm - Twincam Dyno Day 2011
Speed n Sound Readers Ride Issue 118 And Max My Ride magazine
1997 Vtec - Tuned By Docs Tech
2007 X TRD - Toyota Tuned - TTCAM DYNO DAY = 107KW 145NM ATW - STOCK
2008 E90 BMW 325i Sport Pack
2011 E90 BMW 320d Sport Pack
Jetta 3 - 2l 8V Cammed Up

Re: How to Guide : 4AGE 20v Oil Control Valve

Yes mine used to also move side to side.....This is normal.

The new unit is much stiffer though....

The car def feels smoother....but i think this is the first time my VVT solenoid has ever been changed.

Corolla RXi 20v Blacktop                    87 RSi 4AGE 16v "DBN Stock"- 282Wkw @ 1.8 bar
TRD 0.8mm Head Gasket                   Turbonetics 0.63 A/R T3/T4 turbocharger
Yoshimura 270 cams                         Turbonetics Evolution Wastegate
TODA valve Springs                          Built ZE 8.9 bottom end, ARP, FMIC
63mm Exhaust                                 Boost Cooler, Full Management

PM me for all 9000RPM Stickers, T-shirts,Caps
Legends Never Die....They are just Reborn with BooSt
                                   http://img.photobucket.com/albums/v187/twincamsam/10a4_3_resize_resize_resize.jpg
http://img.photobucket.com/albums/v187/twincamsam/3supras.jpg

Re: How to Guide : 4AGE 20v Oil Control Valve

even mine
it was never changed
i just put in a new Vvt gear and thats it

http://i210.photobucket.com/albums/bb152/VENOM1703/IMG00064.jpg
2000 Model Rxi Turbo - 0.4Bar 166wkw  251nm - Twincam Dyno Day 2011
Speed n Sound Readers Ride Issue 118 And Max My Ride magazine
1997 Vtec - Tuned By Docs Tech
2007 X TRD - Toyota Tuned - TTCAM DYNO DAY = 107KW 145NM ATW - STOCK
2008 E90 BMW 325i Sport Pack
2011 E90 BMW 320d Sport Pack
Jetta 3 - 2l 8V Cammed Up

Re: How to Guide : 4AGE 20v Oil Control Valve

This does make a nice difference on the car.Can remember when i done mine sometime last year still.

Nice DIY for the guys Sam.

20V RXI
293° 9.5mm Lift Estas Billet Cams,Toda Valve Springs
VDL Head Job,Dicktator Management
140kw & 181nm
&
05' 2.0i CiTi Golf
276 Estas Billet Cam
97kw & 175nm.

Re: How to Guide : 4AGE 20v Oil Control Valve

WOW ../../extensions/custom_smilies_2/img1/tongue  ../../extensions/custom_smilies_2/img1/tongue
Look mummy ../../extensions/custom_smilies_2/img1/blush  ../../extensions/custom_smilies_2/img1/blush
I changed my own vvt solenoid ../../extensions/custom_smilies_2/img1/neutral  ../../extensions/custom_smilies_2/img1/neutral  ../../extensions/custom_smilies_2/img1/neutral

Thanx SAMO
UHM admin make this a STICKY

180BHP 165NM
1400 vvt 13.9--> 400m 10/03/2012
Built by Ebrahim Shabudien
Tuned by Nazeem Sirkhotte

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Re: How to Guide : 4AGE 20v Oil Control Valve

Stickied  ../../extensions/custom_smilies_2/img1/biggrin2

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(ex) 2008 BMW 320i Sportspack
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Re: How to Guide : 4AGE 20v Oil Control Valve

Ya very helpful and clear step by step post that makes it so simple. Thanks  ../../extensions/custom_smilies_2/img1/wink

EX - 4AGE 20 Valve Silvertop
15.2 sec qautermile - Killarney 15/01/2010
Ex - 3SGTE in 2001model Corolla 160i GLE
Current - 98 Red Corolla RSi

Re: How to Guide : 4AGE 20v Oil Control Valve

with regards to testing the old unit, do u just use a positive and negative straight from the battery to either pin and listen out for the clicking?

if it does not click, unit to be replaced?

Thanks

2006 XRSi (current)
2000 RXi (ex)
1996 Corolla 180 GSE (ex)
1995 Conquest 180RSi (ex)
1992 Corolla Twincam Exec (ex) ....dearly missed
1985 Corolla Twincam (ex)

Re: How to Guide : 4AGE 20v Oil Control Valve

hwzt sam.
can you please explain exactly hw must test the switch? my vvt not working at all. can dirt affect it. can it be cleaned and put back.
tnx bud

http://i917.photobucket.com/albums/ad11/20V_POI-ZN/th_SDC11374.jpghttp://i917.photobucket.com/albums/ad11/20V_POI-ZN/th_SDC10939.jpg
2000 RXi - 2x50mm downpipes and 57/63 primaforce zorst
2009 Polo GTi(vrou's)- Factory stock

Re: How to Guide : 4AGE 20v Oil Control Valve

just thought i'd share this as i was reading the 20v engine manual yesterday and i came across another way to test this OSV. You will need to have a meter that measures resistance.

Disconnect the plug connector and then check the resistance between the 2 pins on the OSV, it should be anything between 11 and 13 ohms..........any other reading indicates that the unit should be changed.

Note they also say that this test should be done at approx 20 degree celcius.

2006 XRSi (current)
2000 RXi (ex)
1996 Corolla 180 GSE (ex)
1995 Conquest 180RSi (ex)
1992 Corolla Twincam Exec (ex) ....dearly missed
1985 Corolla Twincam (ex)

Re: How to Guide : 4AGE 20v Oil Control Valve

my ocv had oil on it wer the 2 pins are. dont think thats normal. what cud have caused that?

http://i917.photobucket.com/albums/ad11/20V_POI-ZN/th_SDC11374.jpghttp://i917.photobucket.com/albums/ad11/20V_POI-ZN/th_SDC10939.jpg
2000 RXi - 2x50mm downpipes and 57/63 primaforce zorst
2009 Polo GTi(vrou's)- Factory stock

13

Re: How to Guide : 4AGE 20v Oil Control Valve

Which side of the OCV is positive and which is negative...becoz I dont have a lug, just two seperate wires and my negative is on the right hand side, yet in Sam's picture it looks to me as if its the left hand side. Correct me if I am wrong... Maybe this is why my VVT kicks on and off at 70000rpm instead of just turning off

EX - 4AGE 20 Valve Silvertop
15.2 sec qautermile - Killarney 15/01/2010
Ex - 3SGTE in 2001model Corolla 160i GLE
Current - 98 Red Corolla RSi

Re: How to Guide : 4AGE 20v Oil Control Valve

I def need to do this test...

If everything seems under control, you`re just not going fast enough
http://i671.photobucket.com/albums/vv80/greenae102/IMAG0039-1.jpg