Just wondering if anyone would be able to help shed some light. Had my FMIC, boost controller, and boost gauge all installed but the gauge is very inaccurate. Car goes much better than before but my boost gauge only fluctuates between 0-4psi (gauge goes to 30psi and its definitely set higher than 0-4psi). The right line has been tapped, I can blow through the line at the end under the bonnet and the air comes out the other end, the line doesnt seem to be pinched at all. The gauge has power and is all connected. The gauge I have is an auto gauge brand ($35 off ebay). Do you think this is possibly just a cheap and nasty gauge? Has anyone else had experience with those gauges? Or any other ideas? Any help appreciated.