780 V6-2849cc 2.8L SOHC B280F (1987): Powertrain Management

Also for this vehicle: 740 L4-2.3L SOHC VIN 88 B230F (1985), 740 L4-2320cc 2.3L DOHC B234F (Can) (1992), 740 L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1986), 740 Factory Service Manual (1984-1992), 760 L4-2320cc 2.3L SOHC Turbo B23FT (1984), 760 L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1985), 760 L6-2383cc 2.4L DSL Turbo D24T (1983), 760 V6-2849cc 2.8L SOHC B280F (1989), 760 V6-2849cc 2.8L SOHC B28A (Can) (1984), 760 V6-2849cc 2.8L SOHC B28F (1983), 760 Factory Service Manual (1982-1990), 780 Factory Service Manual (1986-1991).

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 Management36 pages
  - Relays and Modules - Computers and Control Systems21 pages
    Engine Control Module › Component Information16 pages
    Technical Service Bulletins › LH Fuel Injection Control Unit - Exchange2
    Locations › Fuel Injection2
    Diagrams › Diagram Information and Instructions2 3
    Description and Operation › Fuel Injection2 3 4
    Testing and Inspection › Control Module Pinout Values2 3
    Service and Repair › Fuel Injection2
    Idle/Throttle Speed Control Unit › Component Information › Technical Service Bulletins › CIS Valve - Checking Procedures2 3 4
    System Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Description and Operation
  - Relays and Modules - Fuel Delivery and Air Induction9 pages
    Fuel Pump Relay › Component Information › Technical Service Bulletins4 pages
    Customer Interest for Fuel Pump Relay: › 36108 › Aug › 87 › Fuel Pump/Headlight Relay Terminals - Overheating2
    All Technical Service Bulletins for Fuel Pump Relay: › 36108 › Aug › 87 › Fuel Pump/Headlight Relay Terminals - Overheating2
    Idle/Throttle Speed Control Unit › Component Information › Technical Service Bulletins › CIS Valve - Checking Procedures2 3 4
    System Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Description and Operation
  - Relays and Modules - Ignition System › Ignition Control Module › Component Information › Locations2 3 4 5 6
- Sensors and Switches - Powertrain Management56 pages
  - Sensors and Switches - Computers and Control Systems37 pages
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2 3 4
    Crankshaft Position Sensor › Component Information6 pages
    Locations2
    Testing and Inspection › Fuel Injection Signal2 3 4
    Cylinder Identification Sensor › Component Information › Locations2 3 4 5
    Crankshaft Position/Engine Speed Sensor <--> [Engine Speed Sensor] › Component Information5 pages
    Locations
    Testing and Inspection › Fuel Injection Signal2 3 4
    Knock Sensor › Component Information › Locations2 3 4 5 6
    Oxygen Sensor (Lambda Sond) <--> [Oxygen Sensor] › Component Information › Technical Service Bulletins › Tools - Engine, Oxygen Sensor, Temp Sensor2 3 4
    Throttle Position Switch › Component Information › Technical Service Bulletins › Throttle Switch/Mechanism - Adjustment2 3
  - Sensors and Switches - Fuel Delivery and Air Induction7 pages
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4
    Throttle Position Switch › Component Information › Technical Service Bulletins › Throttle Switch/Mechanism - Adjustment2 3
  - Sensors and Switches - Ignition System12 pages
    Crankshaft Position Sensor › Component Information6 pages
    Locations2
    Testing and Inspection › Fuel Injection Signal2 3 4
    Knock Sensor › Component Information › Locations2 3 4 5 6
- Tune-up and Engine Performance Checks45 pages
  - Fuel Pressure › System Information › Specifications2 3 4
  - Air/Fuel Mixture › System Information14 pages
    Technical Service Bulletins8 pages
    Customer Interest for Air/Fuel Mixture: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
    All Technical Service Bulletins for Air/Fuel Mixture: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
    Adjustments › CO% Adjustment Using Test Diode2 3 4 5 6
  - Idle Speed › System Information › Technical Service Bulletins8 pages
    Customer Interest for Idle Speed: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
    All Technical Service Bulletins for Idle Speed: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
  - Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
  - Firing Order › Component Information › Specifications
  - Ignition Timing2 pages
    Number One Cylinder › Component Information › Locations
    Timing Marks and Indicators › System Information › Locations
  - Ignition Cable › Component Information › Description and Operation2 3
  - Distributor, Ignition6 pages
    Distributor Cap › Component Information › Description and Operation2 3
    Ignition Rotor › Component Information › Description and Operation2 3
  - Spark Plug › Component Information › Description and Operation2 3
  - Compression Check › System Information › Specifications
  - Valve Clearance › System Information › Specifications2
- Computers and Control Systems120 pages
  - Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2 3 4
  - Crankshaft Position Sensor › Component Information6 pages
    Locations2
    Testing and Inspection › Fuel Injection Signal2 3 4
  - Cylinder Identification Sensor › Component Information › Locations2 3 4 5
  - Engine Control Module › Component Information16 pages
    Technical Service Bulletins › LH Fuel Injection Control Unit - Exchange2
    Locations › Fuel Injection2
    Diagrams › Diagram Information and Instructions2 3
    Description and Operation › Fuel Injection2 3 4
    Testing and Inspection › Control Module Pinout Values2 3
    Service and Repair › Fuel Injection2
  - Crankshaft Position/Engine Speed Sensor <--> [Engine Speed Sensor] › Component Information5 pages
    Locations
    Testing and Inspection › Fuel Injection Signal2 3 4
  - Idle Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information › Specifications2 3 4
  - Idle/Throttle Speed Control Unit › Component Information › Technical Service Bulletins › CIS Valve - Checking Procedures2 3 4
  - Knock Sensor › Component Information › Locations2 3 4 5 6
  - System Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Description and Operation
  - Oxygen Sensor (Lambda Sond) <--> [Oxygen Sensor] › Component Information › Technical Service Bulletins › Tools - Engine, Oxygen Sensor, Temp Sensor2 3 4
  - Relays and Modules - Computers and Control Systems21 pages
    Engine Control Module › Component Information16 pages
    Technical Service Bulletins › LH Fuel Injection Control Unit - Exchange2
    Locations › Fuel Injection2
    Diagrams › Diagram Information and Instructions2 3
    Description and Operation › Fuel Injection2 3 4
    Testing and Inspection › Control Module Pinout Values2 3
    Service and Repair › Fuel Injection2
    Idle/Throttle Speed Control Unit › Component Information › Technical Service Bulletins › CIS Valve - Checking Procedures2 3 4
    System Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Description and Operation
  - Sensors and Switches - Computers and Control Systems37 pages
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2 3 4
    Crankshaft Position Sensor › Component Information6 pages
    Locations2
    Testing and Inspection › Fuel Injection Signal2 3 4
    Cylinder Identification Sensor › Component Information › Locations2 3 4 5
    Crankshaft Position/Engine Speed Sensor <--> [Engine Speed Sensor] › Component Information5 pages
    Locations
    Testing and Inspection › Fuel Injection Signal2 3 4
    Knock Sensor › Component Information › Locations2 3 4 5 6
    Oxygen Sensor (Lambda Sond) <--> [Oxygen Sensor] › Component Information › Technical Service Bulletins › Tools - Engine, Oxygen Sensor, Temp Sensor2 3 4
    Throttle Position Switch › Component Information › Technical Service Bulletins › Throttle Switch/Mechanism - Adjustment2 3
  - Throttle Position Switch › Component Information › Technical Service Bulletins › Throttle Switch/Mechanism - Adjustment2 3
- Emission Control Systems15 pages
- Fuel Delivery and Air Induction98 pages
  - Fuel Pressure › System Information › Specifications2 3 4
  - Fuel Pressure Release › System Information › Service and Repair
  - Idle Speed › System Information › Technical Service Bulletins8 pages
    All Technical Service Bulletins for Idle Speed: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
    Customer Interest for Idle Speed: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
  - Air/Fuel Mixture › System Information14 pages
    Technical Service Bulletins8 pages
    Customer Interest for Air/Fuel Mixture: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
    All Technical Service Bulletins for Air/Fuel Mixture: › 00101 › Aug › 89 › Engine - Poor Driveability When Cold2 3 4
    Adjustments › CO% Adjustment Using Test Diode2 3 4 5 6
  - Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4
  - Fuel › Component Information › Technical Service Bulletins › Unleaded Fuel - Usage In Earlier Models
  - Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
  - Fuel Injector6 pages
    Fuel Injector Line › Component Information › Tools and Equipment
    Suppressor Relay <--> [Fuel Injector Relay] › Component Information › Locations2 3 4 5
  - Fuel Pressure Regulator › Component Information › Specifications2 3 4 5 6
  - Fuel Pump8 pages
    Fuel Pressure › System Information › Specifications2 3 4
    Fuel Pump Relay › Component Information › Technical Service Bulletins4 pages
    All Technical Service Bulletins for Fuel Pump Relay: › 36108 › Aug › 87 › Fuel Pump/Headlight Relay Terminals - Overheating2
    Customer Interest for Fuel Pump Relay: › 36108 › Aug › 87 › Fuel Pump/Headlight Relay Terminals - Overheating2
  - Fuel Rail › Component Information › Locations2
  - Fuel Tank › Fuel Gauge Sender › Component Information11 pages
    Technical Service Bulletins › Tank Sending Unit - Replacement For Tanks W/Metal Flange2
    Diagrams › Diagram Information and Instructions2
    Testing and Inspection › Fuel Level Sensor, Fault Tracing2
    Adjustments › 740/760 1982-1986 -- T142 3 4 5
  - Idle Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information › Specifications2 3 4
  - Idle/Throttle Speed Control Unit › Component Information › Technical Service Bulletins › CIS Valve - Checking Procedures2 3 4
  - System Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Description and Operation
  - Relays and Modules - Fuel Delivery and Air Induction9 pages
    Fuel Pump Relay › Component Information › Technical Service Bulletins4 pages
    All Technical Service Bulletins for Fuel Pump Relay: › 36108 › Aug › 87 › Fuel Pump/Headlight Relay Terminals - Overheating2
    Customer Interest for Fuel Pump Relay: › 36108 › Aug › 87 › Fuel Pump/Headlight Relay Terminals - Overheating2
    Idle/Throttle Speed Control Unit › Component Information › Technical Service Bulletins › CIS Valve - Checking Procedures2 3 4
    System Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Description and Operation
  - Sensors and Switches - Fuel Delivery and Air Induction7 pages
    Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information › Specifications2 3 4
    Throttle Position Switch › Component Information › Technical Service Bulletins › Throttle Switch/Mechanism - Adjustment2 3
  - Throttle Body › Component Information › Adjustments2 3
  - Throttle Cable/Linkage › Component Information › Testing and Inspection
  - Throttle Position Switch › Component Information › Technical Service Bulletins › Throttle Switch/Mechanism - Adjustment2 3
- Ignition System59 pages
  - Firing Order › Component Information › Specifications
  - Ignition Timing2 pages
    Number One Cylinder › Component Information › Locations
    Timing Marks and Indicators › System Information › Locations
  - Calibration Resistor / Connector, Ignition › Component Information › Locations
  - Ignition Coil Wire › Component Information › Description and Operation2 3
  - Crankshaft Position Sensor › Component Information6 pages
    Locations2
    Testing and Inspection › Fuel Injection Signal2 3 4
  - Distributor, Ignition6 pages
    Distributor Cap › Component Information › Description and Operation2 3
    Ignition Rotor › Component Information › Description and Operation2 3
  - Ignition Cable › Component Information › Description and Operation2 3
  - Ignition Coil › Component Information › Description and Operation2 3
  - Ignition Control Module › Component Information › Locations2 3 4 5 6
  - Knock Sensor › Component Information › Locations2 3 4 5 6
  - Ignition Power Stage › Component Information › Locations
  - Relays and Modules - Ignition System › Ignition Control Module › Component Information › Locations2 3 4 5 6
  - Sensors and Switches - Ignition System12 pages
    Crankshaft Position Sensor › Component Information6 pages
    Locations2
    Testing and Inspection › Fuel Injection Signal2 3 4
    Knock Sensor › Component Information › Locations2 3 4 5 6
  - Spark Plug › Component Information › Description and Operation2 3
- Transmission Control Systems9 pages
  - Actuators and Solenoids - Transmission and Drivetrain5 pages
    Actuators and Solenoids - A/T › Shift Solenoid, A/T › Component Information › Specifications2 3
    Actuators and Solenoids - M/T › Manual Trans Control Solenoid <--> [Vacuum Control Solenoid Valve, M/T] › Component Information › Diagrams › Diagram Information and Instructions2
  - Sensors and Switches - Transmission and Drivetrain4 pages
    Sensors and Switches - A/T › Overdrive Switch - Transmission <--> [Overdrive Switch, A/T] › Component Information3 pages
    Locations
    Diagrams › Diagram Information and Instructions2
    Sensors and Switches - M/T › Overdrive Switch, M/T › Component Information › Service and Repair
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