I need some help in testing my toyota 90 3.0 4 runner fuel pump because i didn't find out any location to install the
Fuel pump tester if somebody know how to test the fuel pump and how many pps/ pppsression must read ejm. 45 to 50
Thanks

On your model there's no place to connect pressure gauge unless you have special tools for a toyota.
(that I know of)
I wouldn't hesitate to replace the FP on your vehicle because of it's age.

Correct, kitch!

There is no "service port" like you find on newer versions.
You'll need to adapt the banjo fitting at the fuel filter or fuel rail to get an accurate fuel pressure tester reading.
Fuel Pressure:
At Idle: 33 - 37 PSI (226 - 265 kPa)
At WOT: 38 - 44 PSI (265 - 304 kPa)