I just bought an 86na, but it seems to have a vacum leak. I replaced the almost all of the hoses, but it still seems to have a vacum leak. Looking at my 85 na and then at the 86 I noticed that in the front corner by the headlight on the driver side there is this mess of hoses that my 85 doesen't have. What is this stuff that Nissan added to the 86. My guess is that it is for emissions, but I could be wrong. Haynes Manual doesn't really say anthing about it either. I am thinking that I could just hook up the vacum lines on the 86 just like the 85. Could someone please enlighten me, and does anyone have a good vacum diagram for this car?