FAST intake, Ls2 throttle body issues
Thread Starter
Instructor
Joined: Nov 2012
Posts: 101
Likes: 0
From: Rutgers University
FAST intake, Ls2 throttle body issues
So I installed a fast 90 with an ls2 throttle body. But when we hooked everything up we got a loud whistling noise coming from the engine bay. There's a hose that runs from the valve cover to the throttle body on the stock ls6 setup. Now on the ls2 throttle body there is no fitting there for that hose. So we tried blocking it off running it into the intake ( where the previous owner had a intake pressure sensor ) after the throttle body location and we still got this noise. Any ideas what to do with this hose and to stop the noise from happening?
Thanks
Thanks
Racer
Joined: May 2013
Posts: 254
Likes: 7
From: Chicago, IL
So I installed a fast 90 with an ls2 throttle body. But when we hooked everything up we got a loud whistling noise coming from the engine bay. There's a hose that runs from the valve cover to the throttle body on the stock ls6 setup. Now on the ls2 throttle body there is no fitting there for that hose. So we tried blocking it off running it into the intake ( where the previous owner had a intake pressure sensor ) after the throttle body location and we still got this noise. Any ideas what to do with this hose and to stop the noise from happening?
Thanks
Thanks
Alternatively, you can run a small breather filter from that line instead of connecting it to the intake tract (this is what the previous owner did on mine with the fast 90/90 setup and it works just fine.
Thread Starter
Instructor
Joined: Nov 2012
Posts: 101
Likes: 0
From: Rutgers University
Got it to work. I just drilled into the air intake not the intake manifold and put a fitting in and connected it like the old set up. Works like a charm other than the check engine light
