If you install an upgraded WGA and have S0 ecu, chances are you will get a P1188 which means that the ecu is seeing more pressure at part throttle than its use to seeing. Basicly all you have to do is cap off the red line that goes to your cold side pressure pipe as seen in the pix above. Remove the red line and put a bearing or bb inside of it. Or put a rubber cap over the nipple of the Pipe and another one over your red line.