Answer:
If the oil is on the spark plug causing misfire or burning, then you would have to remove the motor to install new piston rings the others could soon follow. Best thing to do is buy a rebuilt or new motor and reinstall your heads(machining heads is recommended. Rebuilding a motor is difficult and alot of specialty tools are required. It is actually more economical to install a new motor. When these motors wear and the rings are bad oil and compression go passed the rings and cause poor acceleration and smoking. Lucas oil is good to help stop the leaking but works temporary.
There is probably worn plastic insulation on a wire exposing the copper conductor. This can be hard to find. Check all wires for circuit in question looking for exposed wire/ worn insulation.
right hand side under steering wheel. open with a Philips screwdriver. location of fuse is marked on back of the panel.
I have the 2001 Brava and to set the clock on it you turn on the radio, hold the EXP button until it beeps then press until TM appears on the display and the time flashes. Then turn the volume knob and the time changes! press EXP again to start the clock at the new time!