2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Charcoal Canister and Purge Valve with no Emissions

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Old 02-21-09 | 01:13 AM
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Charcoal Canister and Purge Valve with no Emissions

Okay, so I am running a TII block as an N/A. Everything is blocked off and would like to retain the purge valve and charcoal canister.

I found this searching around
Originally Posted by Aaron Cake
I still have my charcoal canister and purge valve...

It's easy to do...The big line from the canister connects to the nipple on the middle iron. The other nipple connects to the big nipple on the purge valve. The small nipple on the bottom of the valve connects to the throttle body BEFORE the throttle plates and the nipple on top to a vacuum source.
What bothers me about this is that the stock charcoal canister has the line to the gas evap line from the small nipple on the canister. Aaron Cake says to route that to the purge valve.

If I am still supposed to follow these instructions then what do I do about the evap line?

BTW, I only have the nipple on the middle iron, I DO NOT have a oil line nipple on the oil filler.

Thanks
Old 02-21-09 | 08:53 AM
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mmm doritos

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screw the stupid purge valve.. just hook the fuel tank evap line back to the charcoal canister and call it a day...if you dont hook that up you will be smelling gas all the time
Old 02-21-09 | 11:27 AM
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So your saying I can just run from the intermediate iron nipple to the charcoal cantister, from the charcoal canister to the fuel tank...and thats it?
Old 02-21-09 | 01:29 PM
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Takahashi Ryosuke

 
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PIX?

how to replace?
Old 02-21-09 | 01:48 PM
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Originally Posted by meteoro
PIX?

how to replace?
Pix for what? Replace what?
Old 02-21-09 | 01:54 PM
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From: eureka
Originally Posted by farberio
Pix for what? Replace what?
I think he wants pics of what you are doing.

I am curious to see what it is you are talking about. I have removed emm and I have 1 line that goes into the TID. Is this the line that you are wanting to send back to the canister?
Old 02-21-09 | 02:03 PM
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Originally Posted by farberio
So your saying I can just run from the intermediate iron nipple to the charcoal cantister, from the charcoal canister to the fuel tank...and thats it?
I recommend running the intermediate vent nipple to the bottom of the chassis. I did the setup you describe and had to rebuild my turbo. It works for awhile, but is not adequite for crank ventilation. The factory system puts vacuum on the crank case and recirculates the vapors into the intake not just the charcoal canister. Go to page 4B-5 in the FSM for the routing diagram.

In my situation the charcoal canister eventually oil soaked enough to start building pressure in the crankcase, and blew out the oil seals in the turbo.

This way isn't "green" but these cars rarely are.
Old 02-21-09 | 04:52 PM
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^ Thats why I thought you should run a purge valve as well. Which brings me back to my original question.
Old 02-21-09 | 05:36 PM
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mmm doritos

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just install a catch can if your having crank case ventalation problems. i have one on mine and have no problems with blowing out turbo seals or anything else. i only have the fuel tank hose running to the canister and then the thick hose running down towards the ground...no lines hooked to the intermediate iron. i have the line from the iron and the one from the oil filler neck going to a catch can.
Old 02-21-09 | 11:38 PM
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I don't want to use a catch can if I can just run it through the stock system though.
Old 02-22-09 | 12:11 AM
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mmm doritos

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im kinda confused as to what your trying to do with this thing??? you quoted the answer to your question right in your first post..lol

"It's easy to do...The big line from the canister connects to the nipple on the middle iron. The other nipple connects to the big nipple on the purge valve. The small nipple on the bottom of the valve connects to the throttle body BEFORE the throttle plates and the nipple on top to a vacuum source."

The evap line goes directly to the charcoal canister just how it was from the factory...whats the problem with that???

[IMG][/IMG]
Old 02-22-09 | 12:29 AM
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Okay the picture makes more sense, in the paragraph it sounds like neither of the charcoal canister nipples go to the evap line. But since I don't have the nipple on the oil filler neck, can I tee the line from the iron to run both the charcoal canister and the purge valve?
Old 02-22-09 | 12:52 AM
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mmm doritos

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yeah i dont see a problem with that. or you can put the neck from your TII on it, that should have the nipple on it but the neck may not fit with the NA stuff on the motor
Old 02-22-09 | 08:48 AM
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Originally Posted by 13bturbofc
yeah i dont see a problem with that. or you can put the neck from your TII on it, that should have the nipple on it but the neck may not fit with the NA stuff on the motor
Neither of the necks fit, so I had to shorten them.

Thanks for the help.
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