Fuel System Specifications Fuel pressure Ignition on, engine not running 2.5 - 3.0 bar At idle speed: - Vacuum hose removed 2.5 - 3.0 bar – vacuum hose installed 2.0 - 2.5 bar Residual pressure in the fuel system 1.4 bar Fuel injector resistance...
General information about the fuel system Attention! The fuel system is under pressure for a long time after the engine is turned off. Any disconnection of the fuel lines must first relieve the pressure in the fuel system. The fuel system consists of a fuel...
Relieve pressure in the fuel system Fuel pump power supply circuit 1. Remove the fuel filler cap. 2. Remove the 30 amp AM2 fuel pump fuse from the main fuse box (see fig. Fuel pump power supply circuit). 3. Run the engine at idle until the engine stops....
Checking the performance of the fuel pump 1. Turn on the ignition, but do not start the engine. 2. Connect pins +B and Fp with an additional wire on the control connector (see fig. Fuel pump power supply circuit ). On models with a 1MZ-FE V6 engine since 1994,...
Checking the pressure generated by the fuel pump Supplying battery voltage with additional wires to check the performance of the fuel pump on models with 1MZ-FE V6 engines from 1994. Adapters used to connect a pressure gauge to the top of the fuel filter The pressure...
Checking the Fuel Pressure Regulator Vacuum changeover valve location (VSV) on the engine 1. Disconnect the vacuum hose from the fuel pressure regulator and connect a manual vacuum pump with a pressure gauge instead. Start the engine and measure the fuel...
Checking the fuel pump relay Location of electrical components and sensors of the engine fuel system Open Circuit Relay Location There are two relays in the fuel pump control circuit - the EFI main relay and the open circuit relay. 1. Remove the...
Fuel pump — removal and installation 1. Remove the fuel filler cap. 2. Remove the ground wire from the battery. Attention! If your radio has an anti-theft code, check that you have the pairing codes before disconnecting the battery. Attention! On models...
Fuel Level Sensor — Check and Replace Examination 1. Fill a full tank of fuel. 2. Remove the rear seat and fuel tank cap. 3. Disconnect the electrical connector from the fuel tank. 4. Using an ohmmeter, check the resistance between pins 1 and 2 of the...
Air filter — removal and installation 1. Release the clips and remove the air cleaner cover and filter element. 2. Loosen the clamps and remove the air intake hose. 3. Unscrew three bolts and remove the case of the air filter from a motor compartment. 4....
Accelerator cable — removal, installation and adjustment Removing 1. Remove the ground wire from the battery. Attention! If your radio has an anti-theft code, check that you have the pairing codes before disconnecting the battery. Attention! On models since 1993, the airbag...
Fuel injection system — design description An electric fuel pump located inside the fuel tank delivers fuel at constant pressure to the fuel line, which distributes it to the fuel injectors. The fuel injectors inject fuel near the intake valves. The amount of...
Checking the fuel injection system Locations of possible carbon deposits inside the throttle body If there is a malfunction in the fuel system, first check that all electrical connectors are securely connected and protected from corrosion. Also check the...
Throttle body — check and replace Examination Checking the vacuum in the vacuum hoses of the throttle body of a four-cylinder engine Checking the vacuum in the vacuum hoses of the six-cylinder throttle body 1. Check that the accelerator cable moves...
Throttle position sensor (TPS) — checking and replacing Examination Checking the resistance between the corresponding terminals of the throttle position sensor on four-cylinder engines Checking the resistance between the corresponding pins of the throttle position sensor...
Fuel pressure regulator — replacement The location of the O-ring when installing the pressure regulator on the fuel line 1. Relieve pressure in the fuel line. 2. Remove the ground wire from the battery. Attention! If your radio has an anti-theft code, check...
Nozzle of cold start of the engine 3VZ-FE Examination 1. Disconnect the electrical connector from the cold start fuel injector. 2. Using an ohmmeter, check the resistance between the cold start fuel injector terminals. 3. Connect the electrical connector to the...
Cold start injector time relay 3VZ-FE Examination The time relay is located next to the coolant temperature sensor. 1. Disconnect the electrical connector from the cold start injector timing relay and use an ohmmeter to check the resistance between the...
Control air valve (IAC) — checking and replacing Examination Connecting the tachometer to the IG terminal of the data link connector located in the lower part of the engine compartment Checking resistance between +BI and SCC and +BI and SCO air control valve...
Fuel line and fuel injectors — replacement The location of the screws for fastening the switching vacuum valve 1. Relieve the pressure in the fuel system. 2. Remove the ground wire from the battery. Attention! If your radio has an anti-theft code, check that you...
The valve of the idle mode of the air conditioning system Examination 1. Apply the parking brake and place the shift lever in neutral. Connect a tachometer in accordance with the manufacturer's instructions. Connect the wire from the tachometer to the IG terminal of the...
Air intake chamber (only V6 engines) V6 engine air intake chamber 1 - fuel line; 2 - left fuel line; 3 - gasket; 4 - bracket; 5 – air intake chamber bracket; 6 - casing; 7 - control valves; 8 - air intake chamber; 9 - air duct; 10 - gaskets; 11 - right...