Gasoline engine management Toyota Corona 9 (T190)

Fuel injection system main relay
Injection system main relay connection diagrams: 1 - Battery, 2 - Main fuse 2.0L, 3 - AM2 fuse (30 A), 4 - Ignition switch, 5 - EFI fuse (15 A), 6 - IGN fuse (7.5 A), 7 - Main fuel injection system relay, 8 - Electronic...

Fuel pump relay switch
Fuel switch relay connection diagrams: 1 - diagnostic connector, 2 - to the electronic control unit; to the main relay of the fuel injection system, 3 - to the ignition switch (models with manual transmission); to the...

Coolant and Intake Air Temperature Sensor
Coolant Temperature Sensor Characteristics Note: The coolant temperature sensor specification for lean-burn engines has slightly tighter tolerance limits. Checking the coolant temperature sensor 1. To remove the coolant...

Manifold Absolute Pressure Sensor
1. Check the supply voltage of the absolute pressure sensor in the intake manifold. a) Disconnect the sensor connector. b) Turn on the ignition. Using a voltmeter, measure the voltage between the sensor connector...

Variable Resistor — Testing
1. Check the supply voltage of the variable resistor. Disconnect the connector, turn on the ignition and use a voltmeter to measure the voltage between the terminals of the electronic control unit "VCC" (or "VC") and...

Checking the knock sensor
1. Disconnect the (-) cable from the negative battery terminal. 2. Remove the knock sensor, first disconnecting its connector. 3. Use an ohmmeter to check for conductivity between the sensor terminal and the housing. If...

Pneumatic valve for increasing idle speed when air conditioning is turned on
1. Remove the valve. 2. Check the valve for an open circuit. Using an ohmmeter, make sure that there is no break in the valve winding circuit by measuring its electrical resistance. Valve winding resistance value (in a...

Electro-pneumatic valve of the variable geometry intake manifold system
1. Remove the valve. 2. Check the valve. A. Using an ohmmeter connected to the valve connector terminals, make sure that the valve winding circuit is not broken by measuring its electrical resistance. Nominal value:...

Oxygen sensor — check
Oxygen sensor wiring diagram (3S-FE, 4A-FE, 4S-FE, 7A-FE): 1 - oxygen sensor, 2 - to the main relay of the fuel injection system, 3 - diagnostic connector, 4 - electronic control unit 1. Warm up the engine to normal...

Lean Air-Fuel Ratio Sensor (4A-FE Engine with Lean Burn System)
Lean mixture sensor connection diagram: 1 - lean mixture sensor, 2 - to the main ignition system relay, 3 - diagnostic connector, 4 - electronic control unit 1. Warm up the engine to normal operating temperature. 2....

Electro-pneumatic valve of the exhaust gas recirculation system (3S-FE, 4S-FE, 5E-FE)
1 - to the exhaust gas recirculation system pressure modulator, 2 - from the exhaust gas recirculation system valve, 3 - electro-pneumatic valve. Valve connection diagram. 1 - electro-pneumatic valve, 2 - to the main...

Air supply control valve (5E-FE)
1. Remove the valve . 2. Check the valve. a) Using an ohmmeter, make sure that there is no break in the valve winding circuit by measuring its electrical resistance. The value of the valve winding resistance (in a cold...

Throttle Damper (5E-FE models with automatic transmission)
1. Using an ohmmeter connected to the terminals of the valve connector, make sure that there is no break in the valve winding circuit by measuring its electrical resistance. The resistance value of the valve winding (in...

Fuel shut-off system in forced idle modes
Checking the rotation speed corresponding to switching the fuel supply control valve on and off. 3S-FE, 4A-FE. 4S-FE and 7A-FE 1. Start the engine and warm it up to normal operating temperature. 2. Connect the...

Fuel Pressure Control System (3S-GE, 5E-FE)
Wiring diagram of the system elements. 1 - electronic control unit of the engine and automatic transmission, 2 - electro-pneumatic valve of the fuel pressure control system, 3 - to the main relay of the fuel injection...

This section is available on: russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

Share information:

Similar sections for other Toyota models

➥ Control system (diesel) Toyota RAV 4 XA20 (2000-2005)
➥ Control system Toyota Camry XV10 (1991-1996)
➥ Control system Toyota Highlander 1 (2000-2007, petrol)
➥ Engine management systems Toyota Cruiser 100 (1998-2007)
➥ Control system Toyota Corolla Verso 3 (2004-2009)

Link in different formats to this article

TEXTHTMLBB Code

Corona T190 (1992-1997)