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Discussion Starter · #1 ·
What is the use of the egr valve on a Rav 4 fuelinjection its only for de emissions right ?

I once had an audi A6 diesel and ik took it out and closed of the open holes yhat where left and had alot more power becaus now you get filty exaust fumes mixt with clean air and fuel :surprise
 

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The EGR valve is designed to reduce combustion chamber temperatures by routing inert burnt exhaust gas back into the combustion chamber. This effectively reduces nitrous oxides, a component of smog.
 

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The EGR or Exhaust Gas Recirculation Valve is part of the California Emission Standards that some of Canada also has to abide by.

It's a crock of ****. I've pulled a 3S-FE Engine apart to it's pistons, and I can tell you now, that after owning a 3S-GTE for six months, and having seen the workings of the Rav4 3S-FE Engine, that Toyota's emission control system is "Just barely there".

The EGR Portion of the Emission system takes exhaust gas from CYLINDER NUMBER 1 ONLY! It does NOT take exhaust gas from ANY of the other cylinders.

This sytem DOES WORK, but only enough to satisfy the government inspectors who peeked into the engine bay without wanting to get their labcoats dirty.

What happens if you put a hose on your exhaust pipe and suck in the air? That's right, you get poisoned, and you die.

The only difference is that it takes our cars WAY longer to fail due to Exhaust carbon and unburned oil being re-introduced into your engine.

The ONLY thing you want going in your engine is COLD CLEAN AIR, COLD CLEAN FUEL, and CLEAN Engine oil. The engine oil you change each month contains GUNK and CRAP that engines WITHOUT EGR systems will neverf see. Hardened chunks of burned gas and oil.

It's like wanting Fresh scrambled eggs, but your drunken sibling keeps scraping the burned eggs off the frying pan from yesterday's breakfast ontop of your nice yellow eggs, now you get to bite into grit, carbon and disgusting re-fried grease! Sounds disgusting right? Yes, no amount of Salt or Pepper (Environmental Propaganda) is going to change the mind of those who know that these systems Help the Auto Industry's profits more than the environment

Yes, your crankcase will vent oil into the induction system, but hey, Vent that to Atmostphere and you get a clean burning, fresh air breathing engine.

The Japanese Engine I have in my Rav4 was tuned to 105 Octane fuel from the factory (as all are Caldina ST215 3S-GTE's) They burn cleaner than ANY emission controlled USDM Market Engine. More highly refined fuel burns cleaner, think propane, natural gas.

High octane fuel evaporates WAY faster, and burns hotter, meaning more manufacturer money goes into a better cooling system. We should be forcing oil companies to refine better fuel, than force the middle class to "refine it for them" by using our daily driven cars, which we use to make a living.

The emission control systems on our vehicles do more HARM to your engine than good, and are there for a few, stupid reasons, Profit for the EPA, Profit for the Dealers, Aftermarket, and Planned Obsolesence.

NOT running an emission control system doesnt make you an enemy of the environment, it keeps ONE more car out of the scrapyard for much, much longer than your vehicles Manufacturer intended.

Want my advice? Make a block-off plate for your EGR Valve, suffer the check engine light, or find the appropriate resistor to cancel that amber coloured light of furstration and confusion.

Need an E-Test? Take the block off plate off once a year. If you have your injectors cleaned, wipe out your throttle body, hell, take the intake off and clean it out with degreaser and re-install. Drive it WIDE OPEN for at least 100 Kilometers and run HIGH Octane Fuel, it will CLEAN that engine RIGHT OUT!

Then when it DOES come time for an E-TEst, and you put your EGR Valve back on, you will be almost GUARANTEED TO PASS!! Run that stupid EGR Valve all year, and the day you need an inpsection, you're out hundreds of dollars! Why Run around all year wasting the life of your vehicle's Emission components, when Truly you only need it working for the day that you have that inspection?

My Sources for this info? I bought a JDM 3S-FE (does not contain emission controls AT ALL) and it runs 20 BHP faster than the Canadian 3S-FE, weighs less, and is easier to maintain. Even the SOUND of the engine is different.

You know that Clacking or Ticking Noise, that is common with 3S-FE's? GONE on the JDM 3S-FE. That noise is the ticking of Exhaust Valve NO 1 ticking open and closed, projecting the sound through the EGR Pathway up the intake side of the engine, and you're hearing that ticking noise via the open EGR Valve. Its no different than a stethescope being probed into that cylinder.

For some of you who may have changed an EGR Valve but STILL have a Check engine light and a failed test, the PIPE that goes from the EGR Pathway on the Head, UP to the EGR Valve must be removed, and cleaned out, (like the barrel of a rifle, it will be filled with crap, and you can easily ruin and clog a brand new EGR valve by neglecting the Carbon buildup in the pathway enroute to the EGR valve and intake manifold.)

the JDM 3S-FE also does not have a crank position sensor, you have to take the timing cover off the 3S-FE engine ft the crankcase sensor into it, as well as the fuel injectors from the USDM 3S-FE. The JDM ones are High impedance.

The way I learned about all these issues is that the JDM 3S-FE DOES have provisions or Castings for the EGR Pathway, but they are not drilled through the head, so I had to open that path, and upon completing it, and watching the EGR valve work on its newly opened path through the head of the 3S-FE I realized I could help others replace their aging Rav Engines with a BETTER, FASTER JDM one, by just these few tweaks.

I moved west and am lawfully allowed to own a 3S-GTE in this province so I abandoned my 3S-FE Research, HOWEVER, when I am COMPLETED my R&D into running a 4th Gen 3S-GTE off a Rav4 3s-FE ECU and ADAPTING OBD2 and the EGR Valve system to the 3S-GTE I'll let you know.

The kit I build may enable YOU, to have a 3S-GTE in your Emission restricted state or province. By way of simply introducing 1/4'ths of the exhaust gas from the 3S-GTE flow, I should be able to effect a working emissions control intended for the 3S-FE, onto the Caldina 3S-GTE.

Back to the lab.

3S-FE EGR Pathway ONE AND ONLY:



The 2nd last pic is the JDM 3S-FE showing the provisions are there to adapt the Emission system after drilling out this pathway.



In order to keep metal filings out of cylinder No1, while drilling out the JDM 3S-FE head to open the EGR Pathway I used a tampon, yes, a tampon. It worked!
 

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Discussion Starter · #4 ·
The EGR or Exhaust Gas Recirculation Valve is part of the California Emission Standards that some of Canada also has to abide by.

It's a crock of ****. I've pulled a 3S-FE Engine apart to it's pistons, and I can tell you now, that after owning a 3S-GTE for six months, and having seen the workings of the Rav4 3S-FE Engine, that Toyota's emission control system is "Just barely there".

The EGR Portion of the Emission system takes exhaust gas from CYLINDER NUMBER 1 ONLY! It does NOT take exhaust gas from ANY of the other cylinders.

This sytem DOES WORK, but only enough to satisfy the government inspectors who peeked into the engine bay without wanting to get their labcoats dirty.

What happens if you put a hose on your exhaust pipe and suck in the air? That's right, you get poisoned, and you die.

The only difference is that it takes our cars WAY longer to fail due to Exhaust carbon and unburned oil being re-introduced into your engine.

The ONLY thing you want going in your engine is COLD CLEAN AIR, COLD CLEAN FUEL, and CLEAN Engine oil. The engine oil you change each month contains GUNK and CRAP that engines WITHOUT EGR systems will neverf see. Hardened chunks of burned gas and oil.

It's like wanting Fresh scrambled eggs, but your drunken sibling keeps scraping the burned eggs off the frying pan from yesterday's breakfast ontop of your nice yellow eggs, now you get to bite into grit, carbon and disgusting re-fried grease! Sounds disgusting right? Yes, no amount of Salt or Pepper (Environmental Propaganda) is going to change the mind of those who know that these systems Help the Auto Industry's profits more than the environment

Yes, your crankcase will vent oil into the induction system, but hey, Vent that to Atmostphere and you get a clean burning, fresh air breathing engine.

The Japanese Engine I have in my Rav4 was tuned to 105 Octane fuel from the factory (as all are Caldina ST215 3S-GTE's) They burn cleaner than ANY emission controlled USDM Market Engine. More highly refined fuel burns cleaner, think propane, natural gas.

High octane fuel evaporates WAY faster, and burns hotter, meaning more manufacturer money goes into a better cooling system. We should be forcing oil companies to refine better fuel, than force the middle class to "refine it for them" by using our daily driven cars, which we use to make a living.

The emission control systems on our vehicles do more HARM to your engine than good, and are there for a few, stupid reasons, Profit for the EPA, Profit for the Dealers, Aftermarket, and Planned Obsolesence.

NOT running an emission control system doesnt make you an enemy of the environment, it keeps ONE more car out of the scrapyard for much, much longer than your vehicles Manufacturer intended.

Want my advice? Make a block-off plate for your EGR Valve, suffer the check engine light, or find the appropriate resistor to cancel that amber coloured light of furstration and confusion.

Need an E-Test? Take the block off plate off once a year. If you have your injectors cleaned, wipe out your throttle body, hell, take the intake off and clean it out with degreaser and re-install. Drive it WIDE OPEN for at least 100 Kilometers and run HIGH Octane Fuel, it will CLEAN that engine RIGHT OUT!

Then when it DOES come time for an E-TEst, and you put your EGR Valve back on, you will be almost GUARANTEED TO PASS!! Run that stupid EGR Valve all year, and the day you need an inpsection, you're out hundreds of dollars! Why Run around all year wasting the life of your vehicle's Emission components, when Truly you only need it working for the day that you have that inspection?

My Sources for this info? I bought a JDM 3S-FE (does not contain emission controls AT ALL) and it runs 20 BHP faster than the Canadian 3S-FE, weighs less, and is easier to maintain. Even the SOUND of the engine is different.

You know that Clacking or Ticking Noise, that is common with 3S-FE's? GONE on the JDM 3S-FE. That noise is the ticking of Exhaust Valve NO 1 ticking open and closed, projecting the sound through the EGR Pathway up the intake side of the engine, and you're hearing that ticking noise via the open EGR Valve. Its no different than a stethescope being probed into that cylinder.

For some of you who may have changed an EGR Valve but STILL have a Check engine light and a failed test, the PIPE that goes from the EGR Pathway on the Head, UP to the EGR Valve must be removed, and cleaned out, (like the barrel of a rifle, it will be filled with crap, and you can easily ruin and clog a brand new EGR valve by neglecting the Carbon buildup in the pathway enroute to the EGR valve and intake manifold.)

the JDM 3S-FE also does not have a crank position sensor, you have to take the timing cover off the 3S-FE engine ft the crankcase sensor into it, as well as the fuel injectors from the USDM 3S-FE. The JDM ones are High impedance.

The way I learned about all these issues is that the JDM 3S-FE DOES have provisions or Castings for the EGR Pathway, but they are not drilled through the head, so I had to open that path, and upon completing it, and watching the EGR valve work on its newly opened path through the head of the 3S-FE I realized I could help others replace their aging Rav Engines with a BETTER, FASTER JDM one, by just these few tweaks.

I moved west and am lawfully allowed to own a 3S-GTE in this province so I abandoned my 3S-FE Research, HOWEVER, when I am COMPLETED my R&D into running a 4th Gen 3S-GTE off a Rav4 3s-FE ECU and ADAPTING OBD2 and the EGR Valve system to the 3S-GTE I'll let you know.

The kit I build may enable YOU, to have a 3S-GTE in your Emission restricted state or province. By way of simply introducing 1/4'ths of the exhaust gas from the 3S-GTE flow, I should be able to effect a working emissions control intended for the 3S-FE, onto the Caldina 3S-GTE.

Back to the lab.

3S-FE EGR Pathway ONE AND ONLY:



The 2nd last pic is the JDM 3S-FE showing the provisions are there to adapt the Emission system after drilling out this pathway.



In order to keep metal filings out of cylinder No1, while drilling out the JDM 3S-FE head to open the EGR Pathway I used a tampon, yes, a tampon. It worked!
So this means i can take the egr valve completely off the engine i have an european car not an american. I don't have to change anything in my ecu then ?
 

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Discussion Starter · #5 ·
After reading this .

the next thing I do is the EGR valve seal between the engine and the valve itself so that it is permanently closed.

If I go to the car examination next year i will open it again for the emssion control.

Because i wanna save my engine and i have always done it with my previous cars and i never had any trouble because it was closed off.
 

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Discussion Starter · #6 ·
Just closed off the EGR Valve took a testdrive and man what a difference .

The car engine is much quieter.

And I have a feeling that he goes much faster in its acceleration.

Before it took a very long time to try and get the engine up to 5000 rpm's now it's far more quickly.

it feels like a different car now :D
 

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EGR is a terrible system! Whatever it does to "clean the environment" it takes away in terms of gumming up everything inside of your intake system and making your car run worse... I truly hate it! Blocking it off is easy, but then, you have to deal with the CE light :(
 

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Just closed off the EGR Valve took a testdrive and man what a difference .

The car engine is much quieter.

And I have a feeling that he goes much faster in its acceleration.

Before it took a very long time to try and get the engine up to 5000 rpm's now it's far more quickly.

it feels like a different car now :D
Cool! Glad to see my recommendations result in instant feedback from other users. There is ALOT of Vacuum being wasted on this engine. If you delete everything except the brake booster from the vacuum system you will also see a very fast increase of HP and throttle response. Now go tighten that sloppy loose throttle cable, get a new fuel filter, have your injectors cleaned, get an AC Delete Pully and belt and clean that disgustingly filthy throttle body and report back, after you've added ANOTHER 20 HP to your 3S-FE.
 

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Discussion Starter · #9 ·
Cool! Glad to see my recommendations result in instant feedback from other users. There is ALOT of Vacuum being wasted on this engine. If you delete everything except the brake booster from the vacuum system you will also see a very fast increase of HP and throttle response. Now go tighten that sloppy loose throttle cable, get a new fuel filter, have your injectors cleaned, get an AC Delete Pully and belt and clean that disgustingly filthy throttle body and report back, after you've added ANOTHER 20 HP to your 3S-FE.
You mean take all the vacuum lines off ?

I already tightend the trottle body cable.

And put a new fuel filter in .

Cleaned the trottle body.

And sprayed distilled water thrue the trottle body to decarbonize the engine.

I don't have an airco so thats good.

now i still have to make a beter cool airintake.

And no engine light coming on .
 

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Discussion Starter · #10 ·
You mean take all the vacuum lines off ?

I already tightend the trottle body cable.

And put a new fuel filter in .

Cleaned the trottle body.

And sprayed distilled water thrue the trottle body to decarbonize the engine.

I don't have an airco so thats good.

now i still have to make a beter cool airintake.

And no engine light coming on .

Today took all the rubbish out the vacuumlines and now it runs yet again more silent .

I have found that the rpms also don't jump so hard up and down very nice.
 

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Today took all the rubbish out the vacuumlines and now it runs yet again more silent .

I have found that the rpms also don't jump so hard up and down very nice.
Glad to see someone taking my advice! I know it made one heck of a difference for my 3S-FE's over the years.

Depending where you live, you may be able to also bypass the "throttle body heater". It's used to prevent the Throttle plate from Icing Open (or closed) in extreme weather conditions.

I've found that all it does is increase the intake air temperature, basically nulling and voiding any improvements you try to make with a Cold Air Intake.

One summer, after installing a CAI, and disabling the Throttle body Heater I was certain I jumped 10 HP from that mod alone. Be mindful that Gasoline burns at an optimal temperature, and this mod may adversely affect that.

Here are some pics of the CRUD that stays inside the combustion chamber on EGR Having engines. Might do well to try and vacuum your cylinders out with a small hose adapter and shop vac next time you do your spark plugs. YEEK!

~(300,000 Kilometers on this 98 3S-FE engine)



 

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Discussion Starter · #12 ·
Glad to see someone taking my advice! I know it made one heck of a difference for my 3S-FE's over the years.

Depending where you live, you may be able to also bypass the "throttle body heater". It's used to prevent the Throttle plate from Icing Open (or closed) in extreme weather conditions.

I've found that all it does is increase the intake air temperature, basically nulling and voiding any improvements you try to make with a Cold Air Intake.

One summer, after installing a CAI, and disabling the Throttle body Heater I was certain I jumped 10 HP from that mod alone. Be mindful that Gasoline burns at an optimal temperature, and this mod may adversely affect that.

Here are some pics of the CRUD that stays inside the combustion chamber on EGR Having engines. Might do well to try and vacuum your cylinders out with a small hose adapter and shop vac next time you do your spark plugs. YEEK!

~(300,000 Kilometers on this 98 3S-FE engine)



I think i am gonna leave the throttle body heater because we have some heavy cold snowy winters up here .
 
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