Have what would seem a silly question for most but here goes. I recently had occasion to take the engine out of my 96 Impreza outback,which I have done a couple of times before.Usually I take pictures to make sure bits go back in the right places but this time I forgot.My question: Which nipple on the manifold do the two vacuum pipes from the pressure sensor and the pressure source switching solenoid valve go to.One of them has a filter thingy on it and the other doesn't. Could this cause rough running or a misfire if wrongly connected?