How to remove charcoal canister and not get CEL?

[Kroggers]

So, I removed the smog pump today. All that I have remaining is the rubber tube that disappears under the intake system.

I am wondering if I can just block this tube off for now, or do I have to get to the other end of it and do something???

[Brad Roberts]

No need to block it off. Just disconnect the plug going to the gray solenoid hanging on the side of the intake plenum. Leave the vacuum lines on the solenoid, but disconnect the electrical connector. This will keep the valve from opening and nothing will come out or go into that black rubber tube. It will come off soon!!

You can easily install those flat plates and remove everything by pulling your IPD piece back out


B

[Kroggers]

Originally Posted by Brad Roberts

No need to block it off. Just disconnect the plug going to the gray solenoid hanging on the side of the intake plenum. Leave the vacuum lines on the solenoid, but disconnect the electrical connector. This will keep the valve from opening and nothing will come out or go into that black rubber tube. It will come off soon!!

You can easily install those flat plates and remove everything by pulling your IPD piece back out


B

OK, you got me - what grey solenoid? Do you have a picture to help me out here? If the solenoid is disconnected, can I then also remove it?

Aha, I was going to pull the IPD to one side to see if I got access. Will do that then

Back onto the original subject - the charcoal canister. I am trying to identify where the breather line from the top of the tank goes. On the top of the fuel level sender there is 3 lines:
1. Fuel send
2. Fuel return
3. Breather - where is the other end of this line?

[Kroggers]

OK Brad, had some more good progress in the garage already today and now I am stuck and have some questions for you regarding the charcoal canister and the related connections

I will start by saying I was surprised as to how heavy the charcoal canister is - glad to have that removed from the car!

But now that the canister is gone, I have two lines I am not sure what to do with.

The one marked with the red arrow I have figured out to be the breather on the top of the fuel level sender stuck in the top of the tank and the one I want to keep unplugged to make sure the tank is venting properly.

But the other two I am not sure about. Where do these go and what do I do with them. Should they be left open or should they be blocked off.



Thank you for your time and assistance

[Kroggers]

I have been looking a bit closer on the diagrams for the breather system and the charcoal canister, and I am starting to think the two lines (green and blue arrow) should be connected together.

This is based on the fact that they both connect to the canister, and as such are linked together. By removing the canister, I obviously need to connect them directly to each other - anyone see any errors in my logic???

[Jittsl]

Hey Kroggers, I would be interested to know what you finally ended up doing with the pieces that remained. It's the last piece of unused/unneccessary weight left in my car.

[The Radium King]

i have a copy of an e-book about the bosch motronic system that shows what the various fuel lines do, but it is huge (85M) and won't email. if you have a place i can upload to then i could do that. otherwise, the three lines are (*i think*):

- fuel tank vent (you can vent to lower wheel well)
- atmospheric pressure (delete)
- sai feed (deletes when you remove sai)

i also thought about deleting the canister but, unless it is to be a dedicated track car, apparently your garage is going to stink of gas as your tank vents to atmosphere (ie, won't work for my street/track build).