Fuel System
2GR-FXE FUEL: FUEL SYSTEM: ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION AND INSPECT FOR FUEL LEAK
(a) Check the fuel pump operation.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
NOTICE:
Do not start the engine.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed.
(5) Check for pressure in the fuel inlet tube from the fuel line. Check that sounds of fuel flowing from the fuel tank can be heard. If no sounds can be heard, check the integration relay, fuel pump, ECM and wiring connectors.
(b) Inspect for fuel leaks.
(1) Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs. If there is a fuel leak, repair or replace parts as necessary.
(c) Turn the ignition switch off.
(d) Disconnect the Techstream from the DLC3.
2. CHECK FUEL PRESSURE
(a) Discharge the fuel system pressure Service Precautions.
(b) Using a voltmeter, measure the battery voltage.
Standard voltage:
11 to 14 V
(c) Disconnect the cable from the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
(d) Disconnect the fuel hose from the fuel main tube Removal.
(e) Install SST (pressure gauge) using SST and a fuel tube connector as shown in the illustration.
Text in Illustration
SST : 09268-31012
09268-41500
90467-13001
95336-08070
SST : 09268-45014
09268-41200
09268-41220
09268-41250
(f) Wipe up any spilled gasoline.
(g) Connect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
(h) Connect the Techstream to the DLC3.
(i) Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump / Speed.
(j) Measure the fuel pressure.
Standard fuel pressure:
380 to 420 kPa (3.8 to 4.2 kgf/cm2, 55 to 61 psi)
* If the fuel pressure is higher than the standard range, replace the fuel pressure regulator.
* If the fuel pressure is below the standard range, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.
(k) Put the vehicle in inspection mode Component Tests and General Diagnostics.
(l) Start the engine.
(m) Measure the fuel pressure at idle.
Standard fuel pressure:
380 to 420 kPa (3.8 to 4.2 kgf/cm2, 55 to 61 psi)
(n) Stop the engine.
(o) Check that the fuel pressure remains as specified for 5 minutes after the engine stops.
Standard fuel pressure:
147 kPa (1.5 kgf/cm2, 21 psi) or more
If the fuel pressure is not as specified, check the fuel pump, pressure regulator and/or fuel injectors.
(p) After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove SST to prevent gasoline from splashing.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
(q) Reconnect the fuel tube to the main fuel tube (fuel tube connector).
(r) Install the No. 1 fuel pipe clamp to the fuel tube connector.
(s) Inspect for fuel leaks.
(1) Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs. If there is a fuel leak, repair or replace parts as necessary.