The 1999 Mazda Miata is a returnless fuel system. It has a Fuel Pressure Regulator in the tank (above the fuel pump), and a snub at the end of the fuel rail.
no
pressure relief valve relief the excess pressure which is developed in the syatem, while pressure reducing valve reduces the pressure and supply it to the system.
possibley change the valve guide seals
The high oil pressure relief valve is located in the oil pump
pressure-relief valve
The relief valve is part of the oil pump.
If your pressure relief valve is adjustable, you increase the pressure relief setting.
Converter relief valve ensures high line pressure does not flood/overrun the solenoid.
Make enquiry's with the manufacturer of the compressor and get the max pressure rating. Then let the pressure in the tank build up to that level. If it does not open get a new valve
Propane tanks are required to have a safety relief valve. The relief valve is a safety device on the propane tank to vent excess pressure.
No. The Miata 1.6 uses hydraulic lifters so there are no adjustments. If you are experiencing valve train chatter you have to replace the lifters.
The relief valve is part of the oil pump, inside the oil pan.