I got mine hooked up recently, but it barely moves so i was wondering if its hooked up correctly. Do you need to have the signal wire connected to the ECU or one of the O2 sensors themselves? Mine is hooked up to the front O2 sensor and doesn't change unless i go WOT and then after a couple seconds it goes all the way to the rich zone. There was also a link somewhere with the ECU tap, but there were two numbers highlighted, so which one is better to use?