RX 300 FWD V6-3.0L (1MZ-FE) (1999)
f.
Install SST (pressure gauge) as shown in the illustration by using SST and fuel tube connector.
SST 09268-41047, 09268-41250, 09268-45012
g. Wipe off any splattered gasoline.
h. Reconnect the negative (-) terminal cable to the battery.
i.
Connect the LEXUS hand-held tester to the DLC3. (See step 1.)
j.
Measure the fuel pressure.
Fuel pressure:
301 - 347 kPa (3.1 - 3.5 kg/sq.cm, 44 - 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check these parts:
-
Fuel hoses and connections
-
Fuel pump
-
Fuel filter
-
Fuel pressure regulator
k. Disconnect the LEXUS hand-held tester from the DLC3.
l.
Start the engine.
m. Measure the fuel pressure at idle.
Fuel pressure:
301 - 347 kPa (3.1 - 3.5 kg/sq.cm, 44 - 50 psi)
n. Stop the engine.
o. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Fuel pressure: 147 kPa (1.5 kg/sq.cm, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
p. After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove the SST and fuel tube connector
to prevent gasoline from splashing.
SST 09268-41047, 09268-41250, 09268-45012
q. Reconnect the No.1 fuel pipe (fuel tube connector).
CAUTION: Perform connecting operations of the fuel tube connector (quick type) after observing the precautions.