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Emissions test specialist / Smoke test EVAP system

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    Emissions test specialist / Smoke test EVAP system

    PF,

    I've had a brown davis tank installed, as a 2nd tank, OEM tank is still installed, the vehicle now smells like fuel (most of the time) , the install has had multiple goes at fixing it and is generally just blaming the car now, I camp next to it so I definitely would have noticed and due to the aforementioned camping want to actually get it resolved rather than ignore it.

    The yanks seem to do a kind of smoke testing which pumps smoke into the system and they visually check for leaks etc, does anyone do this kind of testing in Sydney?

    Otherwise i'm attempting to DIY this and just randomly replacing parts which is far from ideal.

    There's no vacuum/pressure hissing when I open the fuel tank cap, regardless of how long it's been running so i'm pretty sure something is amiss.

    Thoughts?
    Parramatta Eels, 2009 Premiership rightful winners.

    #2
    I follow a guy on YouTube with a Wrangler who had issues after installing a second tank. It ended up being a problem with the evap system getting flooded while filling it.


    Take a look at this video, pretty certain this is where is diagnosed and fixed.

    https://youtu.be/JTuIvwNzT5w

    Comment


      #3
      Will be a removed/not installed/flooded vapour system. Probably best to take it to a mechanic that cares ir get a copy of the service manual and trace it all out.

      Comment


        #4
        I had a similar problem once where someone had installed the canister purge valve the wrong way around. You could probably find a leak with a soapy water bubble check if you could pressurise the system, with a bike pump or a radiator presuure tester, or maybe even just parking it in the sun.
        Originally posted by Marlin
        Chickens will slip under water in the cover of darkness like a seal team and FUCK YOU UP.

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          #5
          Unigroup at Girraween do a fair bit of compliance and EPA shit, they have a smoke tester, if you think that will identify your issue.

          Comment


            #6
            Originally posted by Gats View Post
            I follow a guy on YouTube with a Wrangler who had issues after installing a second tank. It ended up being a problem with the evap system getting flooded while filling it.


            Take a look at this video, pretty certain this is where is diagnosed and fixed.

            https://youtu.be/JTuIvwNzT5w
            Yeah it's a common one, the hoses are routed in a way to avoid this issue on mine, but it's something to consider, thanks for the tip / link.

            Originally posted by Slides View Post
            Will be a removed/not installed/flooded vapour system. Probably best to take it to a mechanic that cares ir get a copy of the service manual and trace it all out.
            Cheers - the Australian emissions / EVAP differ from the USA one so the service manual that is commonly available is no good - haven't been able to find a RHD/AU model service manual.

            Originally posted by Faux Forg View Post
            I had a similar problem once where someone had installed the canister purge valve the wrong way around. You could probably find a leak with a soapy water bubble check if you could pressurise the system, with a bike pump or a radiator presuure tester, or maybe even just parking it in the sun.
            Have done the pressure test game, definitely leaks somewhere where the soapy spray hasn't been able to identify, hence the smoke idea.

            Originally posted by gxxr View Post
            Unigroup at Girraween do a fair bit of compliance and EPA shit, they have a smoke tester, if you think that will identify your issue.
            Champion! I'll give them a ping.
            Last edited by MartyHusseinXF; 09-10-19, 08:07 PM.
            Parramatta Eels, 2009 Premiership rightful winners.

            Comment


              #7
              You can buy smoke bombs from Catapillar dealers, used em to check machinery cabins for wind noise/air leaks when I worked at a Truck shop.
              They are much fun.
              2005 VZ SS 5.7L M6 Ute

              Comment


                #8
                Find a vaper to blow into your petrol tanks and then pressurise it!
                Previously known as Lobster, Chuss's brother's anus, Chuss's brother, Lobsook, Lobstersock, Socks, Sockz, MissAmericaImportGirl, ClutchCLobster

                CJM 4 Life yo!

                Comment


                  #9
                  Blow smoke that is.
                  Previously known as Lobster, Chuss's brother's anus, Chuss's brother, Lobsook, Lobstersock, Socks, Sockz, MissAmericaImportGirl, ClutchCLobster

                  CJM 4 Life yo!

                  Comment


                    #10
                    I have a LRA tank in my wrangler and the only time I had a fuel smell issue it was because the vent hose popped off the canaster.

                    Comment


                      #11
                      Originally posted by Shep View Post
                      I have a LRA tank in my wrangler and the only time I had a fuel smell issue it was because the vent hose popped off the canaster.
                      Yeah ive been under / around a few now, it's definitely solveable just gotta go through everything now due to their fuckups.

                      Parramatta Eels, 2009 Premiership rightful winners.

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