Check the information sticker on the end of the drivers door , shows wheel size , tire size , and recommended tire inflation pressure for original factory equipment
The tire will have the maximum allowable pressure printed on the sidewall of the tire. If your vehicle does not have the original equipment tires on it, you wouldn't be filling the tires to the proper pressure anyway. Look on the sidewall of the tire, it's mandatory for tire producers to label the tire with the proper inflation rate
It does not have one.
Have it pressure tested and repair the leak.
5-15 psi
Power steering pressure switch.Power steering pressure switch.
It's to the right of the distributor.
The fuel pressure regulator is part of the pump module in the fuel tank.
It is in the pressure line just behind the pump.
49 psi +-2psi
It is part of the fuel pump module, in the tank.
The proper pressure for you vehicle's tires will be listed on the label on the driver side door jamb.