fuel and temp gauge wont works...think ive fried them! help please!

ok i've found out that my voltage regulator (5V) chips was not sending any output...i've take the wiring harness that i can plug everything outside the dash and make the trouble shooting from there... so i can work better and see what's the problems was...i'm better at it everyday!! now everythings work except the TEMP gauge but it has 5 V going on there... surely blown but the gas gauge work well...