[Towlie]

Originally Posted by AITI

The key to proper evacuation for a turbo application requires 2 sources of evacuation vacuum as the intake manifold becomes pressurized when in boost. The MM can releases pressure to the atmosphere, illegal in all 50 States on the street, and is then messing with fuel trims as all the air is not metered. Call or email Steve from Elite Engineering and he can instruct you on the proper way to address this issue. You won't regret it. Also, Elite is a supporting vendor on this site, MM just coasts off all those that plug him for free (as the moderators allow this so what reason should any pay each month when others are allowed to advertise free?). Support those that support the site IMHO.

What?