My diagram shows fuse 16 as the main power in for the ASD. Fuse 20 as main power out of the ASD to the PCM and coil. And fuse 23 power from the ASD to the O2 sensors. My drawing of the PDC shows the 11 fuse as not used, but the diagrams and the facts are sometimes different (they sure are on my 96).
Could be a fuse, it may be a shorted sensor. A shorted O2 sensor wire is fairly common. Any number of sensors can cause a no bus and shut down your gauges or kill (no light when key is turned to run) your CEL, if you have one. It isn't common for a sensor to blow a fuse, even if it is shorted, a shorted O2 sensor (or wire) will blow a fuse. Fairly common for the O2 wires to cook on the header (front O2) or the exhaust (rear O2).