Hi Robert, The circuit opening relay (fuel pump relay) is located inside the left under dash fuse box and is not serviceable. So pull the rear seat bottom cushion and get to the fuel pump access to unplug the fuel pump.
I have a question for you. Will the engine stay running at part throttle, in other words with your foot on the accelerator?
SERVICE SPECIFICATIONS: 2AZ-FE FUEL: SERVICE DATA; 2009 MY Camry
Fuel pressure = 304 to 343 kPa (3.1 to 3.5 kgf/cm 2, 44.1 to 49.7 psi)
Fuel pressure : at fuel pressure remains for 5 minutes after engine has stopped147 kPa (1.5 kgf/cm 2, 21 psi) or more
Fuel injector Resistance at 20°C (68°F) = 11.6 to 12.4 Ω
Injection volume = 76 to 92 cm 3(4.6 to 5.6 cu in.) per 15 seconds
Difference between each injector = 16 cm 3(0.98 cu in.) or less
Fuel drop = 1 drop or less per 12 minutes
Fuel pump Resistance at 20°C (68°F) = 0.2 to 3.0 Ω