cooling issues
 

Anyone else having or ever had this problem i got a turbo d16z6 and when i start it it revs high like 2000 rpm. i have a uberdata ecu then when the 160 thermostat kicks in or is supposed to be opening it drops down to 750 rpms but the fan doesnt come on it will sit there and keep gettin warmer then the rev goes back up to about 1000-1200 but the fan never comes on. I knwo its either got to be the fans broke the fan switch maybe the thermostat or even the coolant temp sensor. anyone else have or is having this problem ?