Help with wiring on abf conversion

Hi hope someone could help me out I have a few things I cant seem to work out. I have put a 2.0 16v abf engine in my golf cab its running on twin 45s the car runs sweet but my oil light keeps flashing when car is running I got 1 blue wire and 1 yellow wire both are for oil pressure but really don't know where they should be connected to? and my temp gauge works sometimes but not all the time just want to make sure I have connected that up correctly?