Previa Van 4WD L4-148.8 2438cc 2.4L DOHC (2TZ-FE) (1991): Powertrain Management

Also for this vehicle: Previa Van 2WD L4-148.8 2438cc 2.4L DOHC (2TZ-FE) (1992), Previa Van DX 4WD L4-2438cc 2.4L DOHC SC MFI (1997), Previa Van LE 4WD L4-2438cc 2.4L DOHC SC MFI (1997), Previa Van RWD L4-148.8 2438cc 2.4L DOHC SC (2TZ-FZE) (1996).

Diagnostics Maintenance Engine General Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

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01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Hybrid Drive Systems Hybrid Drive Systems: Sections
06Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management31 pages
  - Relays and Modules - Computers and Control Systems14 pages
    Engine Control Module › Component Information8 pages
    Locations
    Diagrams › Component Pin-Out Locations2 3
    Testing and Inspection › Component Tests and General Diagnostics2 3 4
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information6 pages
    Locations
    Description and Operation › ECU Power Supply2
    Testing and Inspection › Circuit Test2 3
  - Relays and Modules - Fuel Delivery and Air Induction9 pages
    Circuit Opening Relay <--> [Fuel Pump Relay] › Component Information › Locations2 3
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information6 pages
    Locations
    Description and Operation › ECU Power Supply2
    Testing and Inspection › Circuit Test2 3
  - Relays and Modules - Ignition System › Igniter <--> [Ignition Control Module] › Component Information8 pages
    Locations2 3
    Testing and Inspection › Spark Test2 3 4 5
- Sensors and Switches - Powertrain Management40 pages
- Tune-up and Engine Performance Checks32 pages
- Computers and Control Systems87 pages
  - Air Flow Meter/Sensor › Component Information › Locations2
  - Intake Air Temperature Sensor › Component Information › Locations2
  - Brake Signal › Component Information › Locations
  - Camshaft Position Sensor › Component Information › Description and Operation
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2 3
  - Engine RPM Sensor (NE signal) <--> [Crankshaft Position Sensor] › Component Information › Description and Operation
  - Data Link Connector › Component Information › Locations2
  - EGR Vacuum Modulator <--> [EGR Backpressure Transducer] › Component Information › Locations2
  - Engine Control Module › Component Information8 pages
    Locations
    Diagrams › Component Pin-Out Locations2 3
    Testing and Inspection › Component Tests and General Diagnostics2 3 4
  - Idle Speed/Throttle Actuator - Electronic › Component Information5 pages
    Locations2
    Testing and Inspection › Circuit Test2 3
  - Idle Up Control Valve › Component Information › Locations
  - Knock Sensor › Component Information › Locations2 3
  - EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information6 pages
    Locations
    Description and Operation › ECU Power Supply2
    Testing and Inspection › Circuit Test2 3
  - Malfunction Indicator Lamp › Component Information › Testing and Inspection › Check Engine Light2
  - Oxygen Sensor › Component Information5 pages
    Technical Service Bulletins › Emissions - Replacement Of Oxygen Sensor Under Warranty2 3
    Locations › Main Oxygen Sensor2
  - Relays and Modules - Computers and Control Systems14 pages
    Engine Control Module › Component Information8 pages
    Locations
    Diagrams › Component Pin-Out Locations2 3
    Testing and Inspection › Component Tests and General Diagnostics2 3 4
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information6 pages
    Locations
    Description and Operation › ECU Power Supply2
    Testing and Inspection › Circuit Test2 3
  - Sensors and Switches - Computers and Control Systems23 pages
    Air Flow Meter/Sensor › Component Information › Locations2
    Camshaft Position Sensor › Component Information › Description and Operation
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2 3
    Engine RPM Sensor (NE signal) <--> [Crankshaft Position Sensor] › Component Information › Description and Operation
    Intake Air Temperature Sensor › Component Information › Locations2
    Knock Sensor › Component Information › Locations2 3
    Oxygen Sensor › Component Information5 pages
    Technical Service Bulletins › Emissions - Replacement Of Oxygen Sensor Under Warranty2 3
    Locations › Main Oxygen Sensor2
    Throttle Position Sensor › Component Information › Locations2 3
    Vehicle Speed Sensor › Component Information › Locations2 3
  - Throttle Position Sensor › Component Information › Locations2 3
  - Vehicle Speed Sensor › Component Information › Locations2 3
- Emission Control Systems18 pages
- Fuel Delivery and Air Induction97 pages
  - Fuel Pressure › System Information › Specifications2
  - Fuel Pressure Release › System Information › Service Precautions › Fuel System Precautions2
  - Idle Speed › System Information › Specifications2
  - Air/Fuel Mixture › System Information › Adjustments
  - Air Cleaner Housing › Component Information › Description and Operation2
  - Air Flow Meter/Sensor › Component Information › Locations2
  - Cold Start Injector › Component Information › Locations2 3 4 5
  - Fuel › Component Information › Technical Service Bulletins › Exhaust System - Sulfur Smell
  - Fuel Filler Cap › Component Information › Testing and Inspection
  - Fuel Filter › Fuel Pressure Release › System Information › Service Precautions › Fuel System Precautions2
  - Fuel Injector › Component Information6 pages
    Technical Service Bulletins › Fuel System - Fuel Injector Cleaning Procedure2
    Testing and Inspection › Circuit Test2 3 4
  - Fuel Pressure Vacuum Switching Valve <--> [Fuel Pressure Control Solenoid] › Component Information › Locations2 3
  - Fuel Pressure Regulator › Component Information › Specifications2 3 4 5 6 7
  - Fuel Pump5 pages
    Fuel Pressure › System Information › Specifications2
    Circuit Opening Relay <--> [Fuel Pump Relay] › Component Information › Locations2 3
  - Fuel Rail › Component Information › Description and Operation2 3 4 5 6 7
  - Fuel Return Line › Component Information › Testing and Inspection
  - Fuel Supply Line › Component Information › Description and Operation2
  - Fuel Tank › Component Information4 pages
    Specifications2
    Service Precautions › Technician Safety Information2
  - Fuel Tank Unit › Component Information › Locations
  - Idle Speed/Throttle Actuator - Electronic › Component Information5 pages
    Locations2
    Testing and Inspection › Circuit Test2 3
  - Idle Up Control Valve › Component Information › Locations
  - EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information6 pages
    Locations
    Description and Operation › ECU Power Supply2
    Testing and Inspection › Circuit Test2 3
  - Relays and Modules - Fuel Delivery and Air Induction9 pages
    Circuit Opening Relay <--> [Fuel Pump Relay] › Component Information › Locations2 3
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information6 pages
    Locations
    Description and Operation › ECU Power Supply2
    Testing and Inspection › Circuit Test2 3
  - Sensors and Switches - Fuel Delivery and Air Induction8 pages
    Air Flow Meter/Sensor › Component Information › Locations2
    Cold Start Injector Time Switch <--> [Thermo Time Switch] › Component Information › Locations2 3
    Throttle Position Sensor › Component Information › Locations2 3
  - Cold Start Injector Time Switch <--> [Thermo Time Switch] › Component Information › Locations2 3
  - Throttle Body › Component Information › Description and Operation2 3 4
  - Throttle Cable/Linkage › Component Information › Adjustments2
  - Throttle Position Sensor › Component Information › Locations2 3
- Ignition System51 pages
  - Firing Order › Component Information › Specifications
  - Ignition Timing › System Information › Specifications › Electrical Specifications2
  - Camshaft Position Sensor › Component Information › Description and Operation
  - Engine RPM Sensor (NE signal) <--> [Crankshaft Position Sensor] › Component Information › Description and Operation
  - Distributor, Ignition4 pages
    Distributor Cap › Component Information › Description and Operation2
    Ignition Rotor › Component Information › Description and Operation2
  - Ignition Cable › Component Information › Description and Operation2
  - Ignition Coil › Component Information › Specifications2 3 4 5
  - Igniter <--> [Ignition Control Module] › Component Information8 pages
    Locations2 3
    Testing and Inspection › Spark Test2 3 4 5
  - Knock Sensor › Component Information › Locations2 3
  - Pick-Up Coil, Ignition › Component Information › Technical Service Bulletins › Ignition - Revised Signal Generator Resistance Specs
  - Relays and Modules - Ignition System › Igniter <--> [Ignition Control Module] › Component Information8 pages
    Locations2 3
    Testing and Inspection › Spark Test2 3 4 5
  - Sensors and Switches - Ignition System7 pages
    Camshaft Position Sensor › Component Information › Description and Operation
    Engine RPM Sensor (NE signal) <--> [Crankshaft Position Sensor] › Component Information › Description and Operation
    Ignition Switch › Component Information › Locations2
    Knock Sensor › Component Information › Locations2 3
  - Spark Plug › Component Information › Specifications2 3 4 5 6
  - Tachometer Connector › Component Information › Locations2
- Transmission Control Systems13 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T3 pages
    Shift Interlock Solenoid › Component Information › Testing and Inspection2
    Shift Solenoid, A/T › Component Information › Locations
  - Lamps and Indicators - Transmission and Drivetrain › Lamps and Indicators - A/T2 pages
    Shift Indicator › Component Information › Technical Service Bulletins › A/T - Improved Shift Indicator Alignment
    Temperature Warning Indicator - A/T › Component Information › Locations
  - Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T › Shift Interlock Control Module › Component Information › Testing and Inspection2 3 4
  - Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T4 pages
    Overdrive Switch, A/T › Component Information › Locations
    Shift Interlock Switch › Component Information › Testing and Inspection2
    Transmission Temperature Sensor/Switch, A/T › Component Information › Locations
07Transmission and Drivetrain Transmission and Drivetrain: Sections
08Brakes and Traction Control Brakes and Traction Control: Sections
09Starting and Charging Starting and Charging: Sections
10Power and Ground Distribution Power and Ground Distribution: Sections
11Steering and Suspension Steering and Suspension: Sections
12Heating and Air Conditioning Heating and Air Conditioning: Sections
13Restraint Systems Restraint Systems: Sections
14Accessories and Optional Equipment Accessories and Optional Equipment: Sections
15Body and Frame Body and Frame: Sections
16Cruise Control Cruise Control: Sections
17Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
18Lighting and Horns Lighting and Horns: Sections
19Windows and Glass Windows and Glass: Sections
20Wiper and Washer Systems Wiper and Washer Systems: Sections