Check the fluid, check for leaks, if there is replace the cylinder or hose and bleed the lines of any air. There a two cylinders, the master cylinder(on the fire wall not far from the brake cylinder) and the slave cylinder(on the gearbox) i think this maybe your problem.
before replacing the oil pump, try replacing the oil filter with one from mazda. there really is a difference in oil filters. if this doesnt cure the issue, youre going to need to replace the oil pump.
need to adjust idle speed by turning air adjusting screw on throttle body idle should be 750 - 790 RPM. make sure spark plugs and wires okay. make sure distributor cap and rotor good.replace fuel filter do a little tune because if engine not fine tuned one bad cylinder will cause engine not to idle if you have fuel injection system clean fuel injectors by filling gas tank full add a can of seafoam to fuel tank see what happens.
1st thing you want to do is position the steering wheel straight, easier when you put one back on. If it's never been removed before you might need the help of a puller
2nd is to disable the horn. Easiest way to do that is by just removing the negative cable from your battery.
3rd is to remove center wheel cover on the three spoke steering wheel you can just simply peel the cover off. On two spoke steering wheels (which is stock), you'll need to remove three or four screws on the back side of the steering wheel. Then pull on the front cover, unplug the horn wire from the connecter, and set the center section aside.
4th is to loosen steering wheel retaining nut. With a 21mm or 13/16ths socket and maybe a breaker bar, you'll want to loosen the retaining nut that is holding the steering wheel on the column. Back it off until it is approximately flush with the end of the bolt. Leaving the nut on the end of the bolt will prevent steering wheel from hitting you in the face when and if you try to use your own strength to pull it off.
5th is pull the steering wheel. Try and give a firm tug on the steering wheel while wiggling it right to left to pull it off the column.
As said above, if the steering wheel has never been removed before, it's probably going to require a gear puller or steering wheel puller. You can acquire one of these at your local auto parts store. Good luck
Remove drivers knee panel then electrical plugs to steering column. Nest inside the engine bay remove the bolts from the universal joint. Last remove the two bolts holding the steering column to the dash frame.