Horizon L4-135 2.2L SOHC (1985): Powertrain Management
Also for this vehicle: Horizon L4-105 1720cc 1.7L SOHC VIN A 2-bbl (1982), Horizon L4-105 1720cc 1.7L VIN B 2-bbl (1983), Horizon L4-135 2.2L SOHC VIN C (1988), Horizon L4-97 1.6L SOHC (1984), Horizon L4-97 1589cc 1.6L VIN A (PEUGEOT) 2-BBL (1983).
Diagnostics
Maintenance
Engine
Transmission
Brakes
Electrical
Steering & suspension
Heating & A/C
Body & interior
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Relays and Modules - Powertrain Management68 pages
Relays and Modules - Computers and Control Systems61 pages
- Body Control Module › Component Information › Diagrams › Diagram Information and Instructions
Power Module <--> [Electronic Spark Control Module] › Component Information3 pages
Powertrain Control Module <--> [Engine Control Module] › Component Information55 pages
Technical Service Bulletins54 pages
Customer Interest for Powertrain Control Module:27 pages
- 181587 › Aug › 87 › ECM - Warm Surge & Bucking Except H.O.2
- 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- 183386 › Jun › 86 › PCM/Carburetion - Multiple Cold Start Die Outs234
- 184485 › Dec › 85 › ECM - No Start or Hard Start2
- 182185 › Apr › 85 › ECM - Poor Driveability Above 3,000 Foot Elevation
- 250585 › Feb › 85 › Engine - Failing State I/M Emissions Inspection for CO
All Technical Service Bulletins for Powertrain Control Module:27 pages
- 181587 › Aug › 87 › ECM - Warm Surge & Bucking Except H.O.2
- 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- 183386 › Jun › 86 › PCM/Carburetion - Multiple Cold Start Die Outs234
- 184485 › Dec › 85 › ECM - No Start or Hard Start2
- 182185 › Apr › 85 › ECM - Poor Driveability Above 3,000 Foot Elevation
- 250585 › Feb › 85 › Engine - Failing State I/M Emissions Inspection for CO
- Diagrams › Diagram Information and Instructions
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
- Relays and Modules - Fuel Delivery and Air Induction › Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
Relays and Modules - Ignition System5 pages
Power Module <--> [Electronic Spark Control Module] › Component Information3 pages
Ignition Control Module › Component Information2 pages
Sensors and Switches - Powertrain Management87 pages
Sensors and Switches - Computers and Control Systems51 pages
Absolute Pressure Sensor › Component Information › Technical Service Bulletins22 pages
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
- Crankshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Ignition Hall Effect Sensor › Component Information › Description and Operation
Manifold Pressure/Vacuum Sensor › Component Information4 pages
Oxygen Sensor › Component Information2 pages
- Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Description and Operation
Throttle Position Sensor › Component Information11 pages
- Vacuum Switch › Component Information › Description and Operation
Distance Sensor <--> [Vehicle Speed Sensor] › Component Information2 pages
Sensors and Switches - Fuel Delivery and Air Induction12 pages
- Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Description and Operation
Throttle Position Sensor › Component Information11 pages
Sensors and Switches - Ignition System24 pages
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Crankshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Hall Effect Sensor, Ignition › Component Information › Description and Operation
- Ignition Hall Effect Sensor › Component Information › Description and Operation
Ignition Switch › Component Information20 pages
Tune-up and Engine Performance Checks40 pages
- Fuel Pressure › System Information › Specifications
- Air/Fuel Mixture › System Information › Technical Service Bulletins › Propane Idle Adjustment - Determination Guidelines
Idle Speed › System Information24 pages
Technical Service Bulletins20 pages
All Technical Service Bulletins for Idle Speed:10 pages
- All Other Service Bulletins for Idle Speed: › 144684 › Oct › 84 › Propane Idle Adjustment - Determination Guidelines
- Specifications › With Computer Control2
- Adjustments › Idle Mixture and Speed Adjustments2
Air Cleaner Housing › Component Information › Technical Service Bulletins2 pages
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions
- Firing Order › Component Information › Specifications
- Ignition Timing › Timing Marks and Indicators › System Information › Diagrams › With Automatic Transmission2
- Ignition Cable › Component Information › Service and Repair
Distributor, Ignition › Component Information4 pages
- Spark Plug › Component Information › Specifications
- Compression Check › System Information › Specifications
- Valve Clearance › System Information › Adjustments
Computers and Control Systems227 pages
Absolute Pressure Sensor › Component Information › Technical Service Bulletins22 pages
- Body Control Module › Component Information › Diagrams › Diagram Information and Instructions
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
- Crankshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
Power Module <--> [Electronic Spark Control Module] › Component Information3 pages
Powertrain Control Module <--> [Engine Control Module] › Component Information55 pages
Technical Service Bulletins54 pages
Customer Interest for Powertrain Control Module:27 pages
- 181587 › Aug › 87 › ECM - Warm Surge & Bucking Except H.O.2
- 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- 183386 › Jun › 86 › PCM/Carburetion - Multiple Cold Start Die Outs234
- 184485 › Dec › 85 › ECM - No Start or Hard Start2
- 182185 › Apr › 85 › ECM - Poor Driveability Above 3,000 Foot Elevation
- 250585 › Feb › 85 › Engine - Failing State I/M Emissions Inspection for CO
All Technical Service Bulletins for Powertrain Control Module:27 pages
- 181587 › Aug › 87 › ECM - Warm Surge & Bucking Except H.O.2
- 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- 183386 › Jun › 86 › PCM/Carburetion - Multiple Cold Start Die Outs234
- 184485 › Dec › 85 › ECM - No Start or Hard Start2
- 182185 › Apr › 85 › ECM - Poor Driveability Above 3,000 Foot Elevation
- 250585 › Feb › 85 › Engine - Failing State I/M Emissions Inspection for CO
- Diagrams › Diagram Information and Instructions
- Ignition Hall Effect Sensor › Component Information › Description and Operation
- Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications
- Idle Speed/Throttle Actuator - Mechanical › Component Information › Locations
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
- Check Engine Lamp <--> [Malfunction Indicator Lamp] › Component Information › Description and Operation
Manifold Pressure/Vacuum Sensor › Component Information4 pages
Oxygen Sensor › Component Information2 pages
Relays and Modules - Computers and Control Systems61 pages
- Body Control Module › Component Information › Diagrams › Diagram Information and Instructions
Power Module <--> [Electronic Spark Control Module] › Component Information3 pages
Powertrain Control Module <--> [Engine Control Module] › Component Information55 pages
Technical Service Bulletins54 pages
All Technical Service Bulletins for Powertrain Control Module:27 pages
- 181587 › Aug › 87 › ECM - Warm Surge & Bucking Except H.O.2
- 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- 183386 › Jun › 86 › PCM/Carburetion - Multiple Cold Start Die Outs234
- 184485 › Dec › 85 › ECM - No Start or Hard Start2
- 182185 › Apr › 85 › ECM - Poor Driveability Above 3,000 Foot Elevation
- 250585 › Feb › 85 › Engine - Failing State I/M Emissions Inspection for CO
Customer Interest for Powertrain Control Module:27 pages
- 181587 › Aug › 87 › ECM - Warm Surge & Bucking Except H.O.2
- 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- 183386 › Jun › 86 › PCM/Carburetion - Multiple Cold Start Die Outs234
- 184485 › Dec › 85 › ECM - No Start or Hard Start2
- 182185 › Apr › 85 › ECM - Poor Driveability Above 3,000 Foot Elevation
- 250585 › Feb › 85 › Engine - Failing State I/M Emissions Inspection for CO
- Diagrams › Diagram Information and Instructions
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
Sensors and Switches - Computers and Control Systems51 pages
Absolute Pressure Sensor › Component Information › Technical Service Bulletins22 pages
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
- Crankshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Ignition Hall Effect Sensor › Component Information › Description and Operation
Manifold Pressure/Vacuum Sensor › Component Information4 pages
Oxygen Sensor › Component Information2 pages
- Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Description and Operation
Throttle Position Sensor › Component Information11 pages
- Vacuum Switch › Component Information › Description and Operation
Distance Sensor <--> [Vehicle Speed Sensor] › Component Information2 pages
- Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Description and Operation
Throttle Position Sensor › Component Information11 pages
- Vacuum Switch › Component Information › Description and Operation
Distance Sensor <--> [Vehicle Speed Sensor] › Component Information2 pages
Emission Control Systems48 pages
Secondary Air Supply <--> [Air Injection]10 pages
- Air Diverter Valve › Component Information › Description and Operation
- Air Injection Check Valve › Component Information › Description and Operation23
- Air Injection Control Valve › Component Information › Description and Operation2
- Air Injection Filter › Component Information › Service and Repair
Air Injection Pump › Component Information3 pages
- Catalytic Converter › Component Information › Description and Operation23
Evaporative Emissions System26 pages
Bowl Vent <--> [Bowl Vent Valve] › Component Information › Technical Service Bulletins12 pages
All Technical Service Bulletins for Bowl Vent:6 pages
Customer Interest for Bowl Vent:6 pages
Purge Control Valve <--> [Canister Purge Control Valve] › Component Information › Technical Service Bulletins8 pages
Evaporative Emission Control Canister › Component Information › Technical Service Bulletins4 pages
Vacuum Delay Valve, EVAP › Component Information › Technical Service Bulletins2 pages
- Positive Crankcase Ventilation › Component Information › Description and Operation23
Heated Inlet Air System <--> [Thermostatic Air Cleaner] › Component Information4 pages
Fuel Delivery and Air Induction472 pages
- Fuel Pressure › System Information › Specifications
- Fuel Pressure Release › System Information › Service Precautions
Idle Speed › System Information24 pages
Technical Service Bulletins20 pages
All Technical Service Bulletins for Idle Speed:10 pages
- All Other Service Bulletins for Idle Speed: › 144684 › Oct › 84 › Propane Idle Adjustment - Determination Guidelines
- Specifications › With Computer Control2
- Adjustments › Idle Mixture and Speed Adjustments2
- Air/Fuel Mixture › System Information › Technical Service Bulletins › Propane Idle Adjustment - Determination Guidelines
Air Cleaner Housing › Component Information › Technical Service Bulletins2 pages
Carburetor17 pages
Accelerator Pump › Component Information › Technical Service Bulletins8 pages
Choke Pull-off › Choke Pull-off Delay Valve › Component Information › Technical Service Bulletins8 pages
- Electric Assist Choke <--> [Choke Thermostat/Heater] › Component Information › Description and Operation
- Fuel › Component Information › Technical Service Bulletins › Fuel - Alcohol Fuel Recommendations2
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions
Fuel Injector › Component Information › Technical Service Bulletins12 pages
- Customer Interest: › 140385 › Jan › 85 › Engine - Hard Start/Rough Idle234
All Technical Service Bulletins for Fuel Injector:6 pages
- All Other Service Bulletins for Fuel Injector: › 141188 › Nov › 88 › Fuel Injectors - Cleaning Information2
Fuel Pressure Regulator › Component Information › Technical Service Bulletins108 pages
- Recalls: › 430 › Oct › 88 › Recall - Fuel Regulator Hose2345
- All Other Service Bulletins for Fuel Pressure Regulator: › 430 › Oct › 88 › Recall - Fuel Regulator Hose2345
- All Other Service Bulletins for Fuel Pressure Regulator: › 210786 › Jun › 86 › M/T - Hard Shifting Into and Out of 5TH Gear234567891011121314151617
- Fuel Pump › Fuel Pressure › System Information › Specifications
Fuel Rail › Component Information › Technical Service Bulletins8 pages
Fuel Reservoir › Component Information › Technical Service Bulletins117 pages
- Recalls: › NHTSA84V147000 › Nov › 84 › Recall 84V147000: Fuel Reservoir Seam Leaks
All Technical Service Bulletins for Fuel Reservoir:39 pages
- All Other Service Bulletins for Fuel Reservoir: › NHTSA84V147000 › Nov › 84 › Recall 84V147000: Fuel Reservoir Seam Leaks
Fuel Return Line › Component Information › Technical Service Bulletins41 pages
Fuel Supply Line › Component Information › Technical Service Bulletins66 pages
- Customer Interest: › 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- Recalls: › 430 › Oct › 88 › Recall - Fuel Regulator Hose2345
- All Other Service Bulletins for Fuel Supply Line: › 182486 › Nov › 86 › Fuel System - Vapor Lock/ Fuel Foaming234567891011121314151617
- All Other Service Bulletins for Fuel Supply Line: › 430 › Oct › 88 › Recall - Fuel Regulator Hose2345
Fuel Tank › Fuel Gauge Sender › Component Information39 pages
Technical Service Bulletins36 pages
- Diagrams › Diagram Information and Instructions23
- Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications
- Idle Speed/Throttle Actuator - Mechanical › Component Information › Locations
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
- Relays and Modules - Fuel Delivery and Air Induction › Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
Sensors and Switches - Fuel Delivery and Air Induction12 pages
- Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Description and Operation
Throttle Position Sensor › Component Information11 pages
- Throttle Body › Component Information › Technical Service Bulletins › EFI Throttle Body Assembly - Component Service
- Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Description and Operation
Throttle Position Sensor › Component Information11 pages
Ignition System49 pages
- Firing Order › Component Information › Specifications
- Ignition Timing › Timing Marks and Indicators › System Information › Diagrams › With Automatic Transmission2
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Crankshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
Distributor, Ignition › Component Information4 pages
Power Module <--> [Electronic Spark Control Module] › Component Information3 pages
- Hall Effect Sensor, Ignition › Component Information › Description and Operation
- Ignition Cable › Component Information › Service and Repair
- Ignition Coil › Component Information › Specifications2
Ignition Control Module › Component Information2 pages
Relays and Modules - Ignition System5 pages
Power Module <--> [Electronic Spark Control Module] › Component Information3 pages
Ignition Control Module › Component Information2 pages
Sensors and Switches - Ignition System24 pages
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Crankshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
- Hall Effect Sensor, Ignition › Component Information › Description and Operation
- Ignition Hall Effect Sensor › Component Information › Description and Operation
Ignition Switch › Component Information20 pages
- Spark Plug › Component Information › Specifications
- Distributor Solenoid <--> [Vacuum Advance Control Solenoid] › Component Information › Description and Operation