Need Help

[Mbpeck]

So I have had an 05 LGT for about a year and a half now and have put 15k miles on it and have put on a cobb, vf52, cobb sf intake, perrin turbo inlet, catless up pipe, invidia catless downpipe and a gfb obv. That being said the car is running poorly after installing the turbo inlet so I believe that is the issue. When at idle the cars afr is anywhere between 16.00-20.44(making it sound like a rotary). But when driving they drop to between 14-16. Another issue is that the turbo makes -0.08-0.00 psi of boost. I was wondering what other things to test before ripping out my turbo inlet...again.

[awfulwaffle]

That sounds like one hell of an air leak

[Mbpeck]

that is the only thing it could be right?

[DaveWaters]

Does that bov recirculate? If not did you make sure the bov return nipple is capped on the new inlet?

[Mbpeck]

the bov does recirculate. There is an air line that runs from the driver side of the head to the turbo inlet, I dont know what it is called, but the stock hose that went from the stock turbo intlet to that air line didn't fit on the perrin inlet. I had to cut the connection to smaller size, but it also shortened it so now they are barely connected, is there a replacement air line I need to get or what

[DaveWaters]

Not sure but if the hose didn’t fit right you may have to use a reducer splice and a piece of smaller diameter hose to make it work. If it’s currently leaking there, that would explain the problem you’re having though. Maybe someone with a Perrin inlet will reply.