Markie Posted June 30, 2005 Share Posted June 30, 2005 I have removed the carbon canister today to fit in my oil catch tank. I re-routed the pipe that routed the fuel vapour to the canister to outside of the engine bay now and blocked off the pipe which connects to the intake manifold. Just wondering if this was okay to do. Read some posts saying it wont effect anything, so just checking. Also just checking I did the right things with the the two pipes. Should I have blocked off the pipe comming from the intake mani or should I have just left it hanging in the bay not bunged up? Thanks in advance. Link to comment Share on other sites More sharing options...
Markie Posted July 1, 2005 Author Share Posted July 1, 2005 Could any techie person comfirm this for me please, as I am due to take her for new front tyres tomorrow.. Pritty please? Link to comment Share on other sites More sharing options...
Wez Posted July 1, 2005 Share Posted July 1, 2005 Sounds correct to me. If you hadn`t blocked the one to intake you would end up with a boost leak, as for the vent pipe, i just routed mine down to under the car. Link to comment Share on other sites More sharing options...
Markie Posted July 1, 2005 Author Share Posted July 1, 2005 Hmm, very concerned about this now guys & gals.. Had the canister removed for trip to get new tyres etc today.. GReddy catch can not installed yet, so I had the fuel line one going straight back into vent at the bottom of the bay (Goes to tank does it?) pipe from the intake manifold I blocked up. How exactly does the canister work and what does it do? I would of thought that the pipe connected to the manifold would need some access to air? Anyways, on the trip there I felt it was a bit better on the uptake. Idling spot on 700RPM and the boost felt strong and cutting in early.. Anyways, after I had the tyres fitted and picked up my oil filter from Toyota, I came to a junchion. Went to pull off, and the car was just crawling.. Put foot to the metal, but still just crawling along. Pulled over, turned off the engine, then started her back up. Then it seemed fine. Very odd, but wondering if this is linked with the removal of the canister? Thats why I want to know a bit more about what it actually does. I thought I would check the garage I brought it to before (Performance Garage) as I was after some hose to fit the catch tank. No luck with that, so I asked him what he thought the canister did. He seems to think it holds a bit of vapour from the tank and when you hit WOT, a solinoid opens and put the vapour into the intake manifold to help with the car with its mixture. He said that if you remove it (Which I have done) it will possibly run lean. If you want to remove it he said, you will need to get a re-map so the car knows it cant use the extra vapour from the can? Totally confused about how important this canister thing is now, and whether is was coinsedence the car not reving caused by the removal of canister/blocking of the pipe to the intake manifold. Also he said that the GReddy cans are not for the supra, as they are not big enough and will cause problems. He says they are only really for 2ltr cars.. And he suggested to buy a big CUSCO oil catch can. Please could anyone who knows for sure post a reply and settle this for me please? Link to comment Share on other sites More sharing options...
Markie Posted July 1, 2005 Author Share Posted July 1, 2005 Damn, sorry for the long post Link to comment Share on other sites More sharing options...
Wez Posted July 1, 2005 Share Posted July 1, 2005 From memory the charcoal canister is purely for emissions, it removes something or other which you are not too worried about Link to comment Share on other sites More sharing options...
Wez Posted July 1, 2005 Share Posted July 1, 2005 As for the catch can question, how can it be too small if there wasn`t one there before? All the catch can does it trap oil vapour to stop it being induced into the engine and possibly lowering the octane rating of the fuel. I just stuck a filter on my breather so it goes straight to atmos as do most people with single kits, the catch can just looks good. If it does turn out to be too small then surely you have another issue as you shouldn`t be able to fill it with oil. Link to comment Share on other sites More sharing options...
hadyn Posted July 1, 2005 Share Posted July 1, 2005 Have you followed the guide on mkiv.com on how to remove it? http://mkiv.com/tmp/no_charcoal_canister/ Link to comment Share on other sites More sharing options...
Markie Posted July 1, 2005 Author Share Posted July 1, 2005 Spoke to slow dogyy dog about this.. What he sugessted was to remove the canister and take a hose from the vapour pipe straight to the inlet on the throttle body... Hopefully that should be it then? The hose at the bottom of the canister I think is just a waste pipe to outside the car then. Guessing it should be the same procedure for the VVT-i to the pre facelift ones as the intructions link posted above is totally different to mine I think. Should there be anymore pipes to deal with apare from the ones I just mentioned? Link to comment Share on other sites More sharing options...
Markie Posted July 3, 2005 Author Share Posted July 3, 2005 OK guys looking to remove the canister. I have driven her today with catch tank on and the pipe with the fuel pipes connected straight to the inlet on the throttle body.. Left the drainage pipe connected to nothing. Anyone checked whether this pipe goes back to the fuel tank or just routes to outside of the engine bay? May of been me, but I noticed that the boost/pick was not as noticable as when I had the intake blocked up and the fuel smelling line going to the bottom pipe (drainage pipe?) Anyone any views on this and where the pipes go which used to connect to the canister. Link to comment Share on other sites More sharing options...
Matt Harwood Posted July 4, 2005 Share Posted July 4, 2005 You definatly DONT want the pipe to the throttle body being connected to the one that goes to the tank! You were right the first time. The throttle body pipe needs blocking, then you have one that goes to the tank and the last one is the breather in the inner wing. You can connect the other two together to prevent the smell of petrol from your tank. Link to comment Share on other sites More sharing options...
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