Umm...help identifying what this piece is?

[Gromit]

I'm doing a boost leak test & took out the intake hose. Found this laying underneath the air filter. Appears to be a small electric motor/pump with a length of vacuum hose attached to it. The vacuum hose was not connected to anything. Has a Mitsu logo on the side & some numbers - tried to look it up in CAPS but too many numbers for the part number box. Can anyone tell me what it is?

 

[turbodsm18]

Possibly your boost control solonoid, or whatever its proper name is

 

[DSMcamaro]

Yes, that would be you stock boost control soloniod. Since you have a boost controller, you don't need it.
http://members.shaw.ca/dsm.1000q/Engineprimer/1G/bcs.htm

 

[Gromit]

Yes, that would be you stock boost control soloniod. Since you have a boost controller, you don't need it.
http://members.shaw.ca/dsm.1000q/Engineprimer/1G/bcs.htm

Cool - thanks for the link. That's definitely it.

 

[Lordpaxin]

Some people have had CEL's when just unplugging it. I left mine plugged in on all the cars, and just tucked out of the way.

 

[paper_clip_boy]

If you want to unplug it and not worry about the check engine light coming on then all you have to do is take a small wire and bend it so that it looks like a U and insert it into the 2 terminals of the plug. That way you are grounding it and completing the circuit. Easy and flawless.

 

[fwdturbobov1996]

I didnt throw a cel when I unplugged mine. lucky me.