Replaced DISA and car doesn't run anymore.

[majidmo]

I have been having stalling at low speed every now and then so decided to check DISA (Adjuster). It had no tension any more and flap was moving freely. I just replaced it with oem bought from dealer. I also took out Idle Control Valve, cleaned it and put it back.
Now car shuts down after starting after jerking crazy for a few seconds. If I push gas button it shut down immediately. Also there is some sound coming from engine. Trans Safe Fail is coming on sometimes too.
I tried reseting adaptive thing but it didn't fix it. Also tried disconnecting electric plug for DISA and no change at all.
I am going to put back the old one back tomorrow to see what happens.

Any idea what might have caused it? Could it be that I got a bad part from dealer?