Fuel injected engines — general information The fuel system includes: fuel tank; electric fuel pump (mounted inside the tank); injection system main relay and fuel pump relay; nozzles; fuel pressure control; air filter; throttle body. Cars 1988-92 with 3F-E...
Specifications of the fuel injection system Fuel pressure Ignition on, engine not running 2.5 – 3.0 kgf/cm 2 Engine idling, pressure regulator vacuum hose disconnected 2.5 - 2.9 kgf/cm 2 Engine idling, pressure regulator vacuum hose connected 2.1 – 2.4 kgf/cm 2...
Fuel system decompression Attention! When working on any part of the fuel system, observe fire safety regulations. 1. Before repairing any part of the fuel system, be sure to relieve fuel pressure to avoid fire and personal injury. 2. Unscrew...
Fuel pump and fuel pressure — check Details of the fuel pump power circuit (1988-90) 1. The main relay of the injection system; 2. Contact fluid temperature sensor; 3. Starting nozzle; 4. Diagnostic connector; 5. Processor unit; 7. Fuel pump relay; 8, 9....
Checking the Fuel Pressure Regulator 1. Disconnect and plug the fuel pressure regulator vacuum hose. Connect a hand vacuum pump to the regulator. Start the engine and read the fuel pressure without regulator vacuum. Create a negative pressure in the...
Main injection relay and fuel pump relay Checking the main relay (1988-89) 1, 2, 3, 4. Contacts Checking the main relay (after 1990) 1, 2, 3, 4. Contacts Checking the fuel pump relay 1. Fuel pump relay 2. Knee pad 3. Sidewall 1. Two relays are included in the...
Fuel lines and joints — check and replacement Examination 1. When performing any work under the vehicle, always check the condition of the fuel lines, all joints and connections. 2. Check for cracks, kinks, deformations on hoses and tubes. 3. Make sure that the...
Fuel pump — removal and installation Removing 1. Perform decompression. 2. Disconnect the battery from the ground. 3. Remove the fuel tank (on cars 1988-90.) 4. On vehicles since 1991, remove the middle seat and sunroof. 5. Disconnect the connector and...
Fuel Level Sensor — Check and Replace Examination 1. Before checking the fuel level sensor, completely fill the tank with gasoline. 2. On cars 1988-90. find the connector located next to the tank, on cars since 1991, remove the rear seat and hatch cover. 3....
Air filter — removal and installation Removing 1. Disconnect the clips and remove the air filter cover and filter element. 2. Disconnect the air intake hose. 3. Turn away bolts (indicated by arrows) and remove the air filter housing. Installation...
Throttle cable — removal and installation Removing 1. Disconnect the battery from the ground. 2. Loosen the cable end locknuts on the damper body. 3. Turn the throttle lever and remove the cable by passing it through the groove in the lever. 4. Disconnect the...
Electronic fuel injection system (EFI system) Electronic fuel injection system for cars 1988-92 1. Fuel pressure regulator; 2. Vacuum regulator valve; 3. Vacuum recirculation valve; 4. Modulating recirculation valve; 5. Main recirculation valve; 6. Gas temperature...
Checking the electronic fuel injection system 1. Check up reliability of all connections with weight. Check system wiring and connectors. Loose electrical connections and poor ground contact can be the cause of many problems that are often perceived as failures of...
Throttle body — check and replace Throttle Body Vacuum Test Table (1988-92) Channel designation At idle Not at idle EGR No vacuum There is a vacuum R No vacuum There is a vacuum Throttle Body Vacuum Test Table (since 1993) Channel designation At idle At...
Throttle Angle Sensor — Check Throttle Position Sensor Test Table (1988-92) Clearance between lever and throttle screw Pin Pairs Resistance 0 mm VTA-E2 0.3 - 6.3 kOhm 0.50 mm IDL-V2 < 2.3 kΩ 0.75 mm IDL-V2 infinity damper fully open VTA-E2 3.5 -...
Fuel pressure regulator — check and replace Examination Description of how to check the pump and fuel pressure (see subsection 5.2.3 ). Pressure regulator on cars 1988-92 1. Vacuum hose; 2. Return fuel line; 3. Pressure regulator Disconnect the fuel return hose,...
Idle speed control valve — check and replace Idle speed control valve (ISC valve, on cars 1988-92) or idle air control valve (IAC valve, on vehicles since 1993). Attention! The engine idle speed is set by the manufacturer and should not be adjusted under normal...
Fuel distributor and nozzles — removal, inspection and installation Examination Perform injection system checks (see subsection 5.2.9.1 ). Replacement 1. Perform decompression. 2. Disconnect the battery from the ground. 3. Disconnect the crankcase ventilation hose from the cylinder head...
Leveling chamber — removal and installation Removing Attention! Work is carried out on a cold engine. 1. Disconnect the battery from the ground. 2. Disconnect all connectors from the camera. 3. Disconnect the throttle cable and transmission linkage. 4. Remove the...