I have a 1992 SC400 with the 1UZ-FE, as far as I know its had 3 owners including me.
The problems I'm having is it starting. I have to press down on the gas pedal while starting for even a chance of it running, and even then it's in low RPMs and sometimes itll just die while I'm driving causing me to pull over and start the car again.
I changed the fuel pump, ignition wires, spark plugs, battery, air filter and still no luck. Please help.