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Vacuum line (charcoal canister) question.

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  • Vacuum line (charcoal canister) question.

    I've got a bunch of vacuum lines that I assume are related to the charcoal canister that I'd like to eliminate if all possible. several of the lines are running through a little 4-way block and 2 of the lines end up in this little box in the lower left corner of the picture below with some electrical plug on it.

    I assume I can just leave the hard line (from the tank open) and pull all the vacuum lines, charcoal canister, and the little box that I mentioned before.

    -Monty

  • #2
    I've never even seen that before. S14? Just unplug it and toss that solenoid and the hoses. That hardline running down the frame rail can come out, too, or just leave it.
    She's built like a Steakhouse, but she handles like a Bistro.

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    • #3
      That solenoid is for the air pump. Remove it and plug the vacuum lines. It actually doesn't affect smog either, mine has been removed for years and the car runs clean. I would just leave the charcoal canister alone, it doesn't hurt performance in any way and it only weighs like 1lb. Why not at least keep some sort of smog device hooked up? I'm just going to move mine to the passenger's side of the car.
      Last edited by racepar1; 09-15-2008, 10:33 AM.
      function > form
      1990 240sx fastback: IN PROGRESS

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      • #4
        Originally posted by racepar1 View Post
        That solenoid is for the air pump. Remove it and plug the vacuum lines.
        I'm going to pull the solenoid and vacuum lines then and see what happens.

        I would just leave the charcoal canister alone, it doesn't hurt performance in any way and it only weighs like 1lb. Why not at least keep some sort of smog device hooked up? I'm just going to move mine to the passenger's side of the car.
        I'm not really that worried about the charcoal canister itself, just the several vacuum lines running all over the passanger side that I get sick of seeing. Also, the vacuum lines to the canister from the IM were never hooked up since before I've owned the car...

        This is also a car I no longer drive on the street anymore, I have to charge the battery between the times I take it to the track, that's how little street use this car sees.
        -Monty

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        • #5
          I took all of that out and have no issues.

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          • #6
            Originally posted by McCoy View Post
            I'm going to pull the solenoid and vacuum lines then and see what happens.
            Nothing will happen, been running my kade like that for YEARS.

            I'm not really that worried about the charcoal canister itself, just the several vacuum lines running all over the passanger side that I get sick of seeing. Also, the vacuum lines to the canister from the IM were never hooked up since before I've owned the car...

            This is also a car I no longer drive on the street anymore, I have to charge the battery between the times I take it to the track, that's how little street use this car sees.
            If it was hooked up I just don't see a point to going through the trouble of un-hooking it.
            function > form
            1990 240sx fastback: IN PROGRESS

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            • #7
              Originally posted by racepar1 View Post
              If it was hooked up I just don't see a point to going through the trouble of un-hooking it.
              If it's (charcoal canister) partially unhooked, then why have all the vacuum lines laying in the engine bay. They have caused me more issues when trying to work around them than anything else. The only reason they've been here this long is because I wasn't sure what the solenoid was for and didn't find any answers the few times I looked in the S13 FSM.

              Also, the picture above doesn't show how bad it is... the mess of vaccum lines under the intake is a [email protected]*k, and there all related to the charcoal canister
              Last edited by McCoy; 09-15-2008, 03:37 PM.
              -Monty

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              • #8
                Originally posted by McCoy View Post
                If it's (charcoal canister) partially unhooked, then why have all the vacuum lines laying in the engine bay. They have caused me more issues when trying to work around them than anything else. The only reason they've been here this long is because I wasn't sure what the solenoid was for and didn't find any answers the few times I looked in the S13 FSM.

                Also, the picture above doesn't show how bad it is... the mess of vaccum lines under the intake is a [email protected]*k, and there all related to the charcoal canister
                There are only 3 vacuum hoses related to the the charcoal canister. One from the canister to the mani (purge), one from the canister to the vacuum solenoid (purge signal), and one from the mani to the purge solenoid (vacuum source).
                function > form
                1990 240sx fastback: IN PROGRESS

                Comment


                • #9
                  Originally posted by racepar1 View Post
                  There are only 3 vacuum hoses related to the the charcoal canister. One from the canister to the mani (purge), one from the canister to the vacuum solenoid (purge signal), and one from the mani to the purge solenoid (vacuum source).
                  I'll check again, but I was sure I was seeing 3-4, not counting the one to the manifold that is already gone.
                  -Monty

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                  • #10
                    The other 2 lines that you see are going to that air pump solenoid, which is totally un-necessary.
                    function > form
                    1990 240sx fastback: IN PROGRESS

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