Service engine code P0205
 

Has anyone else (especially boosted) had this code come up before? A quick google search says its maybe one of the injectors for cylinder 5 but I would think that wouldnt be the problem since the Boosted Performance kit comes with new ones that have been on my car for less than 2k miles.

Bad injector (just because it is fairly new doesn't mean it's good)
Bad wiring (check for opens/shorts; may be intermittent)
Bad ECM.

It would be a pain, but switching the injectors around and seeing if the code follows it would let you know if it's a bad injector or if you need to start hunting wiring gremlins.

Excellent idea.

Turns out it was just related to the lack of a catalytic converter. All good!