Spark plug diagram

does anyone have a spark plug diagram for the 1994 xj12 or know where to get one??

I don’t. I will tell you, though, that there was a TSB that added a plastic clip to hold the 1A and 1B spark plug wires together on top of the A/C compressor. Without the clip, these leads would lean up against injectors and the corona generated by the spark pulses would gradually break down the plastic housing on the injector, cause a fuel leak, and next thing you know fooom!