PL720 2WD L4-1952cc 2.0L SOHC (Z20) (1985): Powertrain Management

Also for this vehicle: PL720 2WD L4-2187cc 2.2L SOHC (Z22) (1982), PL720 2WD L4-2389cc 2.4L SOHC (Z24) (1983), PL720 2WD L4-2488cc 2.5L DSL (SD25) (1985), PL720 4WD L4-2389cc 2.4L SOHC (Z24) (1983).

Diagnostics Maintenance Engine 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
05Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management16 pages
  - Relays and Modules - Computers and Control Systems8 pages
    Electronic Carburetor Control (ECC) Unit <--> [Engine Control Module] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Description and Operation › Electronic Control Module2
    ECC Relay <--> [Main Relay (Computer/Fuel System)] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Locations › Component Locator2
  - Relays and Modules - Emission Control Systems › Positive Temp Coefficient (PTC) Relay <--> [EFE Relay] › Component Information › Locations
  - Relays and Modules - Fuel Delivery and Air Induction5 pages
    Altitude Compensator Relay › Component Information › Locations
    ECC Relay <--> [Main Relay (Computer/Fuel System)] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Locations › Component Locator2
  - Relays and Modules - Ignition System › Power Transistor <--> [Ignition Control Module] › Component Information › Technical Service Bulletins › Ignition - Transistor Unit Application Chart2
- Sensors and Switches - Powertrain Management51 pages
  - Sensors and Switches - Computers and Control Systems43 pages
    Barometric Pressure Sensor › Component Information › Testing and Inspection
    Altitude Switch <--> [Barometric Pressure Switch] › Component Information › Testing and Inspection
    Clutch Switch, ECM › Component Information › Locations2 3
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2
    Crankshaft Position Sensor › Component Information › Adjustments
    Intake Air Temperature Sensor › Component Information › Specifications
    Detonation Sensor <--> [Knock Sensor] › Component Information › Description and Operation2
    Oxygen Sensor › Component Information27 pages
    Technical Service Bulletins › Engine Controls - Seized O2 Sensor Removal Procedure2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…25
    Description and Operation › Electronic Controlled Carburetor (ECC)2
    Throttle Position Switch › Component Information3 pages
    Locations
    Description and Operation › Full Throttle Vacuum Switch, Carbureted2
    Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information › Description and Operation2
  - Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information › Specifications
  - Sensors and Switches - Fuel Delivery and Air Induction › Throttle Position Switch › Component Information3 pages
    Locations
    Description and Operation › Full Throttle Vacuum Switch, Carbureted2
  - Sensors and Switches - Ignition System4 pages
    Crankshaft Position Sensor › Component Information › Adjustments
    Ignition Switch › Component Information › Service and Repair
    Detonation Sensor <--> [Knock Sensor] › Component Information › Description and Operation2
- Tune-up and Engine Performance Checks13 pages
- Computers and Control Systems112 pages
  - Intake Air Temperature Sensor › Component Information › Specifications
  - Barometric Pressure Sensor › Component Information › Testing and Inspection
  - Altitude Switch <--> [Barometric Pressure Switch] › Component Information › Testing and Inspection
  - Clutch Switch, ECM › Component Information › Locations2 3
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2
  - Crankshaft Position Sensor › Component Information › Adjustments
  - EGR Backpressure Transducer › Component Information › Description and Operation2 3
  - Electronic Carburetor Control (ECC) Unit <--> [Engine Control Module] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Description and Operation › Electronic Control Module2
  - Air-Fuel Mixture Solenoid <--> [Feedback Control Solenoid] › Component Information › Testing and Inspection
  - Auxiliary Air Control (AAC) Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information › Adjustments
  - Fast Idle Control Device (F.I.C.D.) <--> [Idle Up Control Valve] › Component Information › Locations2
  - Detonation Sensor <--> [Knock Sensor] › Component Information › Description and Operation2
  - ECC Relay <--> [Main Relay (Computer/Fuel System)] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Locations › Component Locator2
  - Air/Fuel Ratio Control Solenoid Valve <--> [Mixture Control Solenoid] › Component Information › Description and Operation › Air/Fuel Ratio Control Solenoid Valve, Carbureted2 3
  - Oxygen Sensor › Component Information27 pages
    Technical Service Bulletins › Engine Controls - Seized O2 Sensor Removal Procedure2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…25
    Description and Operation › Electronic Controlled Carburetor (ECC)2
  - Relays and Modules - Computers and Control Systems8 pages
    Electronic Carburetor Control (ECC) Unit <--> [Engine Control Module] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Description and Operation › Electronic Control Module2
    ECC Relay <--> [Main Relay (Computer/Fuel System)] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Locations › Component Locator2
  - Sensors and Switches - Computers and Control Systems43 pages
    Barometric Pressure Sensor › Component Information › Testing and Inspection
    Altitude Switch <--> [Barometric Pressure Switch] › Component Information › Testing and Inspection
    Clutch Switch, ECM › Component Information › Locations2 3
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2
    Crankshaft Position Sensor › Component Information › Adjustments
    Intake Air Temperature Sensor › Component Information › Specifications
    Detonation Sensor <--> [Knock Sensor] › Component Information › Description and Operation2
    Oxygen Sensor › Component Information27 pages
    Technical Service Bulletins › Engine Controls - Seized O2 Sensor Removal Procedure2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…25
    Description and Operation › Electronic Controlled Carburetor (ECC)2
    Throttle Position Switch › Component Information3 pages
    Locations
    Description and Operation › Full Throttle Vacuum Switch, Carbureted2
    Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information › Description and Operation2
  - Throttle Position Switch › Component Information3 pages
    Locations
    Description and Operation › Full Throttle Vacuum Switch, Carbureted2
  - Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information › Description and Operation2
- Emission Control Systems54 pages
- Fuel Delivery and Air Induction39 pages
  - Fuel Pressure › System Information › Specifications
  - Idle Speed › System Information3 pages
    Specifications
    Adjustments › Idle Speed Adjustment2
  - Air/Fuel Mixture › System Information › Adjustments
  - Altitude Compensator › Altitude Compensator Relay › Component Information › Locations
  - Carburetor5 pages
    Carburetor Float › Component Information › Adjustments2
    Choke Plate › Component Information › Adjustments
    Choke Pull-off › Component Information › Adjustments
    Throttle Plate - Carb. › Component Information › Adjustments
  - Dashpot › Component Information › Adjustments
  - Fuel Filler Cap › Component Information › Testing and Inspection
  - Fuel Filter › Component Information › Locations
  - Fuel Injector › Component Information › Technical Service Bulletins › Fuel - Injector Replacement Guidelines2 3
  - Fuel Pump › Fuel Pressure › System Information › Specifications
  - Fuel Shut-off Solenoid › Component Information › Testing and Inspection
  - Fuel Tank › Fuel Tank Vacuum Relief Valve <--> [Fuel Tank Pressure Release Valve] › Component Information › Testing and Inspection
  - Auxiliary Air Control (AAC) Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information › Adjustments
  - Fast Idle Control Device (F.I.C.D.) <--> [Idle Up Control Valve] › Component Information › Locations2
  - Idle/Altitude Compensator (Non Comp. Controlled) › Component Information › Description and Operation
  - ECC Relay <--> [Main Relay (Computer/Fuel System)] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Locations › Component Locator2
  - Relays and Modules - Fuel Delivery and Air Induction5 pages
    Altitude Compensator Relay › Component Information › Locations
    ECC Relay <--> [Main Relay (Computer/Fuel System)] › Component Information4 pages
    Technical Service Bulletins › ECM - Green or Blue Relay Caution2
    Locations › Component Locator2
  - Sensors and Switches - Fuel Delivery and Air Induction › Throttle Position Switch › Component Information3 pages
    Locations
    Description and Operation › Full Throttle Vacuum Switch, Carbureted2
  - Throttle Position Switch › Component Information3 pages
    Locations
    Description and Operation › Full Throttle Vacuum Switch, Carbureted2
- Ignition System19 pages
- Transmission Control Systems › Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T › Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information › Description and Operation2
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections