I am working on a customers car right now and we are putting a d15b obdI turbo motor in it. That is besides the point. My question is we are using the manifold off the d15b motor, i have all the sensors plugged in except one that is on the left side of the stock Y7 mani. It has 2 lines running out of the bottom of it that are vacum lines. I Just need to know what sensor this is. Thanks in advance.