Does anyone know how to test the fuel pressure on 01 GS300. My car is sputtering when pressing gas and I think may be due to low fuel pressure. I don't see any port to hook up a gauge in the engine compartment to do the test. Car has 220K miles and all coils, park plug and wires were changed recently.

 

Bump having similar issue

 

Somewhere on the fuel rail should be a test port, or even a schrader valve. At least on all of our Toyotas, we have to remove the test port, and install the adapter, then the fuel pressure gauge. Yet there should be something on the fuel rail, to attach to.

This should give you some guidance, on where to put the pressure tester connection:

https://www.google.com/search?q=2jz+...tests&tbm=isch