I am tired of digging through the internet and connecting a bunch of 20 year old blog posts into some kind of messed up puzzle, so I'm just gonna ask my questions here.
So my 1981 N/A 280ZX had its climate control disconnected by a previous owner, and I am now trying to get it working again. Since they seemed to have only disconnected a single vacuum line to do this, I just reconnected it but it didn't work. So I did a bunch of research and found diagrams that helped me right a few wrongs as far as vacuum hose connections. But when I did this, the engine idled really rough and did not sound happy. I'll explain my findings using these pictures; basically, a previous owner connected 1 and 2 together as you can see, but I believe that 1 is supposed to be connected to C, and 2 is connected to A, and then B is the climate control vacuum supply which goes inside the firewall. For some reason, when everything is connected together as stated above, the engine idled poorly, and I found that if 1 does not have an adequate vacuum supply, the engine idles rough, therefore making the engine idle good when connected to 2. When everything is connected to the vacuum tank, none of the other hoses are getting vacuum as far as I can tell. Basically, my big questions are, is all of this correct? And if it is, what can I do to make 1 and B get vacuum from the tank?
So my 1981 N/A 280ZX had its climate control disconnected by a previous owner, and I am now trying to get it working again. Since they seemed to have only disconnected a single vacuum line to do this, I just reconnected it but it didn't work. So I did a bunch of research and found diagrams that helped me right a few wrongs as far as vacuum hose connections. But when I did this, the engine idled really rough and did not sound happy. I'll explain my findings using these pictures; basically, a previous owner connected 1 and 2 together as you can see, but I believe that 1 is supposed to be connected to C, and 2 is connected to A, and then B is the climate control vacuum supply which goes inside the firewall. For some reason, when everything is connected together as stated above, the engine idled poorly, and I found that if 1 does not have an adequate vacuum supply, the engine idles rough, therefore making the engine idle good when connected to 2. When everything is connected to the vacuum tank, none of the other hoses are getting vacuum as far as I can tell. Basically, my big questions are, is all of this correct? And if it is, what can I do to make 1 and B get vacuum from the tank?
