Heres the problem:
About a month ago I ( really FD3BOOST and i helped ) did the poor mans non seq mod to my 7. Acouple weeks later I had a strange boost leak. If i jam on the gas it'll go to about 5psi and then sound like the BOV is continuosly going off. But if I slowly build up boost its fine all the way to normal boost. I had originaly traced this problem back to the vacume T that connects the manifold, the CRV, and the BOV. I added a couple of zip ties and everything worked fine for about a week, then same problem. Ive tried the zip tie solution again with no good results.

could this be a bad bov? or do I just maybe need a biger diameter vacume t?

All help is appreaciated. Thanks

 

Make sure the source for the vacuum line to the BOV is correct - it should be the nipple on the upper intake manifold that's by the stock capped nipple everyone uses for a boost gauge. If you draw that from a different source, you could have issues.

For vacuum T's, ALWAYS ALWAYS use brass T's, especially that close to the turbo heat. Plastic ones will crumble and break over time. You can actually get them in the aquarium section of most pet stores for cheap.

The stock blowoff valves are very hardy. If you had a leak on that line, that could lead to the BOV leaking - it works on a difference in pressure, and atmospheric pressure might not be enough to hold it closed.

Dale

 

The location is correct, and im pretty sure that the lines arent leaking. Ill check for a brass t tonight. thanks alot!