Toyota 3VZ–FE User Manual

(h) Using SST, connect terminals +B and FP of the data link
connector 1.
SST 09843–18020
(i) Reconnect the battery negative (–) cable.
(j) Turn the ignition switch ON.
(k) Measure the fuel pressure.
Fuel pressure:
265–304 kPa (2.7–3.1 kgf/cm
2
, 38–44 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the following parts:
•Fuel hoses and connection
•Fuel pump
•Fuel filter
•Fuel pressure regulator
•Injector
(l) Remove SST.
SST 09843–18020
(m) Start the engine.
(n) Disconnect the vacuum sensing hose from the fuel pressure
regulator, and plug the hose end.
(o) Measure the fuel pressure at idle.
Fuel pressure:
265–304 kPa (2.7–3.1 kgf/cm
2
, 38–44 psi)
(p) Reconnect the vacuum sensing hose to the fuel pressure
regulator.
(q) Measure the fuel pressure at idle.
Fuel pressure:
226–265 kPa (2.3–2.6 kgf/cm
2
, 33–37 psi)
If pressure is not as specified, check the vacuum sensing
hose and fuel pressure regulator.
EG–172
–ENGINE TROUBLESHOOTING SFI SYSTEM

Toyota 3VZ–FE Specifications

General

Engine Type	V6
Bore	87.5 mm (3.44 in)
Compression Ratio	9.6:1
Torque Output @ RPM	4400 rpm
Valvetrain	DOHC, 4 valves per cylinder
Block Material	Cast Iron
Head Material	Aluminum
Displacement	3.0 L
Stroke	82.0 mm (3.23 in)
Fuel System	Multi-port fuel injection
Bore x Stroke	87.5 mm x 82 mm (3.44 in x 3.23 in)