Hi. I have upped the boost on my turbo now sometimes I get a 'kick' like taking your foot off and on the throttle. I believe this is caused by the 'boost control switch' shutting down the fuel pump. I'm told that it is adjustable. It is on the curcuit diagram but I can't find the thing on the car! Some people have said that it near the pedals on the boost guage pipe, on my car it isn't. Does anyone know where it is located?