What is this noise?

[DSM BoosT]

So, this all started happening out of the blue...The noise coming from underneath the dash, so my first instinct is that its the ECU. I haven't touched anything down there, could any settings in DSMlink cause this? I know I need a new knock sensor the wire got torn off somehow. SO the knock sensor isn't plugged in. And dont worry I am not driving the car, just trying to fix a few things before I sell it, I dont want to hand off a grenade to the next guy. I have the boost set to waste-gate pressure so if I do go into boost I don't blow the car up. (it was running very good on 21psi before I pulled the intake/throttle body off to fix a boost leak)Trying to figure out what the heck is going on.

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[Ozyeclipse]

Have u messed with any heating components maybe ## heater core if its under the dash yeah

 

[PrimerPLus]

I had a noise kind of like that when I first got my car but only happened at about 55mph. My ecu was only bolted on side so it raddled like a damn machine gun going off, until I out a bolt on the other side and tightened it down

 

[boosteddsm98]

well can you tell if it is speed or rpm related? if not then it is most likely something loose under the dash if that is were you think it is coming from. let us know what you find out.

 

[DSM BoosT]

Didn't mess with any heating components, I'll double check to see if its bolted in correctly, but like I said it was running perfect like a couple weeks ago. When I tried to get it back in the driveway the clicking started and the car like died, but then when I reved it it jerked a little, went into gear, and drove fine until the rpms went down and nearly died again. Alternator is brand new, and battery is fairly new as well. I'm baffled...