# here's a good one for ya **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [August 27, 2007, 7:35pm UTC](https://forums.speedlife.net/t/heres-a-good-one-for-ya/192069 "2007-08-27T19:35:56Z")\ **Posts on this page:** 1\ **Showing post:** 29
**Author:** ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)\ **Post date:** [September 1, 2007, 6:39am UTC](https://forums.speedlife.net/t/heres-a-good-one-for-ya/192069/29 "2007-09-01T06:39:15Z")
> [@1/8 mile](https://forums.speedlife.net/t/1-8-mile/32187/19): > > Haha…I highly doubt its the tune…I know exactly what he is talking about. It seems to be when there is high vaccuum AND a decent amount of rpm’s. ie… downshifting OR decel on a hill. > > My motor has 2 valve cover vents from the factory. > 1.)hose from valve cover TO intake pipe > 2.)PCV from valve cover TO intake manifold > > ONLY change I have done was to the #1 (above). > -I took the port on the valve cover and ran it to a catch can instead of the intake pipe. > > \*I am thinking the hose on #2 needs disconnected as well. Any suggestions? What is you catch setup? Same with the original poster? If not I bet your blowing boost into the crankcase, classic symptoms of that. Are you using filter media inside the can? Did you both remove the stock breather box and use the pcv for the catch inlet? That will give you great swirl/filtering effect and function as a check valve stopping boost pressure from sailing through the catch. At the very least both of you should have a check valve put in on both sides of the can itself (since it’s cheap) and see if the issue subsides. You both have good tunes, so it is definatley in the hardware. --- _[View the full topic](https://forums.speedlife.net/t/heres-a-good-one-for-ya/192069)._