Description of fuel injection The fuel injection system consists of three main subsystems: fuel supply, air supply and electronic control. Fuel system Fuel at constant differential pressure (284 kPa) is supplied by the fuel pump through the filter...
Precautionary measures Electrical Maintenance Precautions 1. Check the correct motor settings (see chapter " Maintenance and general inspection and adjustment procedures "). 2 Precautions when connecting appliances. A) Use the rechargeable...
Self-diagnosis system Description The electronic control unit has a built-in self-diagnosis system, which continuously monitors the condition of the engine based on sensor signals. If a malfunction is detected, this system identifies it and...
Troubleshooting with a road test The purpose of the road test is to: A) Playback (imitation) driving modes in which this diagnostic code is detected. b) Verify the correctness of the performed repairs, making sure that after performing them, this...
Troubleshooting with a voltmeter Note. Troubleshooting procedures have been developed for each system and are outlined in this manual. These procedures may change slightly from time to time. However, the methods given in this manual are practically...
Electronic Fuel Injection Control System Test Procedure Preconditions. A) Disconnect the connectors from the electronic control unit. b) Remove the retainers as shown in the figure to allow easy connection of tester probes. Note: be careful with the elements "A" And "IN",...
Conclusions of the electronic control unit 3S-FE (4WD with automatic transmission). 3S-FE (4WD with manual transmission). 3S-FE (front wheel drive, with TRC system). 3S-FE (front wheel drive, without TRC system). 4S-FE (with automatic transmission). 4S-FE (with...
Fuel pump Check on the engine 1. Check the operation of the fuel pump. A) Turn on the ignition. Note: do not start the engine. b) Short the terminals with a jumper "+V" And "FP" diagnostic connector V) Check for fuel pressure in...
Fuel pressure control Check on the engine Check fuel pressure (see " Fuel pump check "). Removal and installation of the regulator 1 Disconnect the wire from the negative (-) battery terminals. 2. Disconnect the power steering hose. 3....
Nozzles — removal and installation Check on the engine 1. Check the performance of the nozzles by ear. A) With the engine running or when turning it over with a starter, use a phonendoscope to make sure by ear (sound of injected fuel) in the performance...
Air supply system Diagram of vacuum lines (since 1996). 1 - fuel pressure regulator, 2 and 5 - hoses of the idle speed increase system No. 3 and No. 1, respectively, 3 - absolute pressure sensor in the intake manifold, 4 -...
Throttle body Vehicle check 1. Check the throttle body. A) Check the smoothness of the damper actuator. Cars with automatic transmission Removing the throttle body 1. Drain the engine coolant. 2. Disconnect the accelerator cable. 3....
Valve of the idling speed control system Check on the engine 1. Check valve operation. A) Initial conditions: the engine is warmed up to normal operating temperature, idle speed is correctly adjusted, the shift lever or automatic transmission selector is in...
Electronic control system Main relay of the fuel injection system 1. Remove the main relay of the injection system. 2. Check the resistance of the relay winding. A) Use an ohmmeter to check for continuity between the terminals "1" And "3"...
Traction control (TRC) Vehicle check Checking the TRC Operation Indicator Turn on the ignition (ON). Make sure the TRC operation indicator is on for about 3 seconds. Checking the indicator "TRC OFF" 1. Turn on the ignition (ON). Make sure the...