Toyota 3VZ–FE Troubleshooting Manual page 173

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