I read the previous threads on this problem, and have determined my COLD START INJECTOR VALVE has no power to it, is shorted out, or it's stuck. I get the FAULT CODE: 17656 on my VCDS. My timing is stuck advanced at 255, which indicates there is no power to the COLD START INJECTOR VALVE. My question is: How do I determine if the valve is STUCK? Is there a way to UNSTICK IT, and test it....besides putting it in and out of the car repeatedly? I have done 3 IP installations (installing another IP for testing), already! I'm getting a little too familiar with the process. Please offer help! With the IP out of the car, and the valve on the bench...I just put 12 volts on the valve, and it "clicks". I tested the #34 fuse, and it's good...as well as the BROWN wire, at the connector plug (for the IP). If the valve has power, and clicks...can it still be a BAD PART?