Hyundai Sonata LF: Engine Control / Fuel System
- General Information
- Engine Control System
- Description and Operation
- Components and Components Location
- Engine Control Module (ECM) Schematic Diagrams
- Engine Control Module (ECM) Repair procedures
- ETC (Electronic Throttle Control) System Description and Operation
- ETC (Electronic Throttle Control) System Troubleshooting
- ETC (Electronic Throttle Control) System Specifications
- ETC (Electronic Throttle Control) System Schematic Diagrams
- ETC (Electronic Throttle Control) System Repair procedures
- Manifold Absolute Pressure Sensor (MAPS) Description and Operation
- Manifold Absolute Pressure Sensor (MAPS) Specifications
- Manifold Absolute Pressure Sensor (MAPS) Troubleshooting
- Manifold Absolute Pressure Sensor (MAPS) Schematic Diagrams
- Manifold Absolute Pressure Sensor (MAPS) Repair procedures
- Intake Air Temperature Sensor (IATS) Description and Operation
- Intake Air Temperature Sensor (IATS) Specifications
- Intake Air Temperature Sensor (IATS) Schematic Diagrams
- Intake Air Temperature Sensor (IATS) Repair procedures
- Ambient Temperature Sensor (ATS) Description and Operation
- Ambient Temperature Sensor (ATS) Specifications
- Ambient Temperature Sensor (ATS) Schematic Diagrams
- Ambient Temperature Sensor (ATS) Repair procedures
- Boost Pressure Sensor (BPS) Description and Operation
- Boost Pressure Sensor (BPS) Specifications
- Boost Pressure Sensor (BPS) Schematic Diagrams
- Boost Pressure Sensor (BPS) Repair procedures
- Engine Coolant Temperature Sensor (ECTS) Description and Operation
- Engine Coolant Temperature Sensor (ECTS) Specifications
- Engine Coolant Temperature Sensor (ECTS) Schematic Diagrams
- Engine Coolant Temperature Sensor (ECTS) Repair procedures
- Crankshaft Position Sensor (CKPS) Description and Operation
- Crankshaft Position Sensor (CKPS) Specifications
- Crankshaft Position Sensor (CKPS) Troubleshooting
- Crankshaft Position Sensor (CKPS) Schematic Diagrams
- Crankshaft Position Sensor (CKPS) Repair procedures
- Camshaft Position Sensor (CMPS) Description and Operation
- Camshaft Position Sensor (CMPS) Troubleshooting
- Camshaft Position Sensor (CMPS) Schematic Diagrams
- Camshaft Position Sensor (CMPS) Repair procedures
- Knock Sensor (KS) Description and Operation
- Knock Sensor (KS) Specifications
- Knock Sensor (KS) Schematic Diagrams
- Knock Sensor (KS) Repair procedures
- Heated Oxygen Sensor (HO2S) Description and Operation
- Heated Oxygen Sensor (HO2S) Specifications
- Heated Oxygen Sensor (HO2S) Schematic Diagrams
- Heated Oxygen Sensor (HO2S) Repair procedures
- Rail Pressure Sensor (RPS) Description and Operation
- Rail Pressure Sensor (RPS) Specifications
- Rail Pressure Sensor (RPS) Troubleshooting
- Rail Pressure Sensor (RPS) Schematic Diagrams
- Rail Pressure Sensor (RPS) Repair procedures
- Accelerator Position Sensor (APS) Description and Operation
- Accelerator Position Sensor (APS) Specifications
- Accelerator Position Sensor (APS) Schematic Diagrams
- Accelerator Position Sensor (APS) Repair procedures
- Injector Description and Operation
- Injector Specifications
- Injector Troubleshooting
- Injector Schematic Diagrams
- Injector Repair procedures
- Purge Control Solenoid Valve (PCSV) Description and Operation
- Purge Control Solenoid Valve (PCSV) Specifications
- Purge Control Solenoid Valve (PCSV) Schematic Diagrams
- Purge Control Solenoid Valve (PCSV) Repair procedures
- CVVT Oil Control Valve (OCV) Description and Operation
- CVVT Oil Control Valve (OCV) Specifications
- CVVT Oil Control Valve (OCV) Schematic Diagrams
- CVVT Oil Control Valve (OCV) Repair procedures
- Electric WGT Control Actuator Description and Operation
- Electric WGT Control Actuator Specifications
- Electric WGT Control Actuator Schematic Diagrams
- Electric WGT Control Actuator Repair procedures
- RCV Control Solenoid Valve Description and Operation
- RCV Control Solenoid Valve Specifications
- RCV Control Solenoid Valve Schematic Diagrams
- RCV Control Solenoid Valve Repair procedures
- Fuel Pressure Control Valve Description and Operation
- Fuel Pressure Control Valve Specifications
- Fuel Pressure Control Valve Troubleshooting
- Fuel Pressure Control Valve Schematic Diagrams
- Fuel Pressure Control Valve Repair procedures
- Canister Close Valve (CCV) Description and Operation
- Canister Close Valve (CCV) Specifications
- Canister Close Valve (CCV) Schematic Diagrams
- Canister Close Valve (CCV) Repair procedures
- Fuel Delivery System
- Components and Components Location
- Repair procedures
- Fuel Tank Repair procedures
- Fuel Pump Repair procedures
- Fuel Filter Repair procedures
- Fuel Pump Motor Repair procedures
- Fuel Sender Repair procedures
- Fuel Pressure Regulator Repair procedures
- Fuel Pump Control Module (FPCM) Description and Operation
- Fuel Pump Control Module (FPCM) Specifications
- Fuel Pump Control Module (FPCM) Schematic Diagrams
- Fuel Pump Control Module (FPCM) Repair procedures
- Fuel Pressure Sensor (FPS) Description and Operation
- Fuel Pressure Sensor (FPS) Specifications
- Fuel Pressure Sensor (FPS) Schematic Diagrams
- Fuel Pressure Sensor (FPS) Repair procedures
- Fuel Line Repair procedures
- Filler-Neck Assembly Repair procedures
- Accelerator Pedal Repair procedures
- Delivery Pipe Repair procedures
- High Pressure Fuel Pump Repair procedures
Exhaust Emission Control System
Description and Operation Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Intake Air Temperature Sensor (IATS) Description and Operation
Description Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature. To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature...
Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting Ignition System SymptomSuspect AreaRemedyEngine will not start or is hard to start (Cranks OK)Ignition lock switchInspect ignition lock switch, or replace as requiredIgnition coilInspect ignition coil, or replace as requiredSpark plugsInspect spark plugs, or replace as requiredIgnition wiring disconnected or brokenRepair wiring, or replace as requiredRough idle or stallsIgnition wiringRepair wiring, or replace as requiredIgnition coilInspect ignition coil, or replace as requiredEngine hesitates/poor accelerationSpark plugs and spark plug cablesInspect spark plugs / cable, or replace as requiredIgnition wiringRepair wiring, or replace as requiredPoor mileageSpark plugs and spark plug cablesInspect spark plugs / cable, or replace as required Charging System SymptomSuspect AreaRemedyCharging warning indicator does not light with ignition switch "ON" and engine off...
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