boost leak

So... I'm trying to find an intake leak. I've successfully hooked up my smoke machine to the plumbing before the throttle plate, but I can't seem to find a way to open the throttle plate without running the engine. When I turn on accessory power and put a brick on the pedal, nothing happens. I'm...

Okay all, back again with more problems of course! The car has been driving really poor lately, I first took note that it felt sluggish, it was also dipping really low in rpm when I would first let off the gas at a stop, and I was noticing a whistle on occasion. Come to find out, while giving a...

Hello, My speed3 is running low on boost (13.57 psi is the most I can get from it if I’m pushing it hard, and this is in 5th) but seemingly not leaking boost when I tested leaks from the turbo back. I can only make 8psi in a 3rd gear wot test. I’m running the Mazda CX-7 turbo (K0422-582) that...

New to the forum, trying to find a particularly elusive problem. Yesterday I changed the oil on my 1st Gen MS3 (2012 engine in it) and about 30 minutes later when I was merging onto the highway it lost power and started misfiring. Whenever I go past a certain throttle position it started...

NOTE: I have transferred this thread which was created by me on another forum in hopes of helping someone else! Hello fellow MSO'ers, So I've been having a hard time with this weird hum noise under boosted acceleration on my '07 speed 3. I've got some mods done to it, but I have no idea what...