Sonata L4-2.4L (1990): Powertrain Management
Also for this vehicle: Sonata GL V6-2.5L (1999), Sonata GL V6-3.0L (1997), Sonata GLS V6-2.5L (2000), Sonata GLS V6-2.7L (2002), Sonata L4-2.0L (1992), Sonata V6-2.7L (2004), Sonata V6-3.0L (1991), Sonata V6-3.3L (2006).
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 Management59 pages
Relays and Modules - Computers and Control Systems48 pages
Engine Control Module › Component Information43 pages
Technical Service Bulletins40 pages
All Technical Service Bulletins for Engine Control Module:20 pages
- 00-00-001 › Jul › 00 › Scan Tool - Software Update Procedure234567
- 98-36-006 › Aug › 98 › Engine Coolant Temperature Sensor - Diagnosis234
- 9536002 › Jun › 95 › Engine - Idle Surge/Rough Idle2
- 9436005 › Oct › 94 › Engine - Stalls On Initial cold Start23
- 9336001 › Mar › 93 › Engine - Stalls Shifting Into Gear At Idle23
- 9236005 › Dec › 92 › ECU - Testing Precautions
All Other Service Bulletins for Engine Control Module:12 pages
- Locations › Component Locations23
- Main Relay (Computer/Fuel System) › Component Information › Locations2345
Relays and Modules - Fuel Delivery and Air Induction6 pages
Relays and Modules - Ignition System › Ignition Control Module › Component Information5 pages
Sensors and Switches - Powertrain Management135 pages
Sensors and Switches - Computers and Control Systems74 pages
Accelerator Pedal Position Sensor › Component Information › Technical Service Bulletins8 pages
- Air Flow Meter/Sensor › Component Information › Specifications234567
- Barometric Pressure Sensor › Component Information › Specifications › Electrical Specifications2
- Barometric Pressure Switch › Component Information › Description and Operation
- Camshaft Position Sensor › Component Information › Description and Operation2
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Technical Service Bulletins › Engine Coolant Temperature Sensor - Diagnosis234567
Crankshaft Position Sensor › Component Information7 pages
- EGR Valve Position Sensor › Component Information › Description and Operation
- Idle Speed Motor Position Sensor › Component Information › Specifications2345
- Intake Air Temperature Sensor › Component Information › Specifications234
Oxygen Sensor › Component Information10 pages
- Power Steering Pressure Switch › Component Information › Technical Service Bulletins › Power Steering Pump - Pressure Switch Cautions
- Throttle Full Close Switch › Component Information › Locations234
Throttle Position Sensor › Component Information › Technical Service Bulletins8 pages
- Transmission Position Switch/Sensor, A/T › Component Information › Description and Operation
- Vehicle Speed Sensor › Component Information › Locations23456
Sensors and Switches - Emission Control Systems4 pages
Sensors and Switches - Fuel Delivery and Air Induction44 pages
Accelerator Pedal Position Sensor › Component Information › Technical Service Bulletins8 pages
Accelerator Pedal Switch › Component Information › Technical Service Bulletins4 pages
- Air Flow Meter/Sensor › Component Information › Specifications234567
- Idle Speed Motor Position Sensor › Component Information › Specifications2345
- Throttle Full Close Switch › Component Information › Locations234
Throttle Position Sensor › Component Information › Technical Service Bulletins16 pages
- Customer Interest: › 97-40-031 › Sep › 97 › A/T - Driveability Concerns234
- All Technical Service Bulletins: › 97-40-031 › Sep › 97 › A/T - Driveability Concerns234
All Other Service Bulletins for Throttle Position Sensor:8 pages
All Other Service Bulletins for Throttle Position Sensor:0 pages
- 98-40-002 › Apr › 98 › A/T - Intermittent Delayed, Erratic, Harsh Shifting
- 97-40-025-1 › Aug › 97 › A/T - Driveability Concerns/DTC's Set/MIL ON
- 96-40-013 › Jul › 96 › A/T - Delayed/Harsh/Erratic Upshifts/Downshifts
- TRAN025 › Jun › 91 › Pulse Generator - Supplier Change
Sensors and Switches - Ignition System13 pages
- Camshaft Position Sensor › Component Information › Description and Operation2
Crankshaft Position Sensor › Component Information7 pages
- Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair234
Tune-up and Engine Performance Checks44 pages
- Fuel Pressure › Diagnostic Connector - Fuel Pump › Component Information › Locations2345
- Air/Fuel Mixture › System Information › Adjustments
Idle Speed › System Information18 pages
Technical Service Bulletins10 pages
Customer Interest for Idle Speed:5 pages
All Technical Service Bulletins for Idle Speed:5 pages
- Specifications › Idle Specifications2
- Adjustments › Idle Speed Adjustment23456
- Air Cleaner Housing › Air Filter Element › Component Information › Technical Service Bulletins › Air Filter - Servicing Precautions
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
- Firing Order › Component Information › Specifications
- Ignition Cable › Component Information › Testing and Inspection2
- Distributor, Ignition › Distributor Hold-Down › Component Information › Technical Service Bulletins › Distributor Hold Down Stud - Modified2
- Spark Plug › Component Information › Specifications23
Valve Clearance › System Information4 pages
Computers and Control Systems265 pages
- A/C Signal › Component Information › Testing and Inspection2
Accelerator Pedal Position Sensor › Component Information › Technical Service Bulletins8 pages
- Air Flow Meter/Sensor › Component Information › Specifications234567
- Intake Air Temperature Sensor › Component Information › Specifications234
- Barometric Pressure Sensor › Component Information › Specifications › Electrical Specifications2
- Barometric Pressure Switch › Component Information › Description and Operation
- Camshaft Position Sensor › Component Information › Description and Operation2
- Central Power Supply › Component Information › Service Precautions2
- Cold Advance Solenoid › Component Information › Specifications
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Technical Service Bulletins › Engine Coolant Temperature Sensor - Diagnosis234567
Crankshaft Position Sensor › Component Information7 pages
- Data Link Connector › Component Information › Locations › Component Locations23
- EGR Valve Position Sensor › Component Information › Description and Operation
Engine Control Module › Component Information43 pages
Technical Service Bulletins40 pages
All Technical Service Bulletins for Engine Control Module:20 pages
- 00-00-001 › Jul › 00 › Scan Tool - Software Update Procedure234567
- 98-36-006 › Aug › 98 › Engine Coolant Temperature Sensor - Diagnosis234
- 9536002 › Jun › 95 › Engine - Idle Surge/Rough Idle2
- 9436005 › Oct › 94 › Engine - Stalls On Initial cold Start23
- 9336001 › Mar › 93 › Engine - Stalls Shifting Into Gear At Idle23
- 9236005 › Dec › 92 › ECU - Testing Precautions
All Other Service Bulletins for Engine Control Module:12 pages
- Locations › Component Locations23
- Idle Speed Motor Position Sensor › Component Information › Specifications2345
Idle Speed/Throttle Actuator - Electronic › Component Information › Technical Service Bulletins16 pages
Customer Interest for Idle Speed/Throttle Actuator - Electronic:8 pages
All Technical Service Bulletins for Idle Speed/Throttle Actuator - Electronic:8 pages
- Main Relay (Computer/Fuel System) › Component Information › Locations2345
- Malfunction Indicator Lamp › Component Information › Description and Operation234
Oxygen Sensor › Component Information10 pages
- Power Steering Pressure Switch › Component Information › Technical Service Bulletins › Power Steering Pump - Pressure Switch Cautions
Relays and Modules - Computers and Control Systems39 pages
Engine Control Module › Component Information34 pages
Technical Service Bulletins31 pages
All Technical Service Bulletins:20 pages
- 00-00-001 › Jul › 00 › Scan Tool - Software Update Procedure234567
- 98-36-006 › Aug › 98 › Engine Coolant Temperature Sensor - Diagnosis234
- 9536002 › Jun › 95 › Engine - Idle Surge/Rough Idle2
- 9436005 › Oct › 94 › Engine - Stalls On Initial cold Start23
- 9336001 › Mar › 93 › Engine - Stalls Shifting Into Gear At Idle23
- 9236005 › Dec › 92 › ECU - Testing Precautions
- All Other Service Bulletins for Engine Control Module: › 9640016 › Sep › 96 › A/T - Poor 1st to 2nd Gear Upshift/Harsh Shifts23
- All Other Service Bulletins for Engine Control Module: › 9640016 › Sep › 96 › A/T - Poor 1st to 2nd Gear Upshift/Harsh Shifts
- Locations › Component Locations23
- Main Relay (Computer/Fuel System) › Component Information › Locations2345
Sensors and Switches - Computers and Control Systems74 pages
Accelerator Pedal Position Sensor › Component Information › Technical Service Bulletins8 pages
- Air Flow Meter/Sensor › Component Information › Specifications234567
- Barometric Pressure Sensor › Component Information › Specifications › Electrical Specifications2
- Barometric Pressure Switch › Component Information › Description and Operation
- Camshaft Position Sensor › Component Information › Description and Operation2
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Technical Service Bulletins › Engine Coolant Temperature Sensor - Diagnosis234567
Crankshaft Position Sensor › Component Information7 pages
- EGR Valve Position Sensor › Component Information › Description and Operation
- Idle Speed Motor Position Sensor › Component Information › Specifications2345
- Intake Air Temperature Sensor › Component Information › Specifications234
Oxygen Sensor › Component Information10 pages
- Power Steering Pressure Switch › Component Information › Technical Service Bulletins › Power Steering Pump - Pressure Switch Cautions
- Throttle Full Close Switch › Component Information › Locations234
Throttle Position Sensor › Component Information › Technical Service Bulletins8 pages
- Transmission Position Switch/Sensor, A/T › Component Information › Description and Operation
- Vehicle Speed Sensor › Component Information › Locations23456
- Throttle Full Close Switch › Component Information › Locations234
Throttle Position Sensor › Component Information › Technical Service Bulletins8 pages
- Transmission Position Switch/Sensor, A/T › Component Information › Description and Operation
- Vehicle Speed Sensor › Component Information › Locations23456
- Voltage Signal › Component Information › Testing and Inspection › Battery Signal2
Emission Control Systems37 pages
- Catalytic Converter › Component Information › Technical Service Bulletins › Exhaust System - Rotten Egg Odor Explanantion
Evaporative Emissions System16 pages
Exhaust Gas Recirculation13 pages
- EGR Control Solenoid › Component Information › Technical Service Bulletins › EGR Solenoid - Clattering Noise2
- EGR Temperature Sensor › Component Information › Technical Service Bulletins › EGR Temperature Sensor - Code 43 Diagnosis23
- EGR Valve › Component Information › Specifications23
- EGR Valve Position Sensor › Component Information › Description and Operation
- Thermal Vacuum Valve, EGR › Component Information › Specifications234
- Positive Crankcase Ventilation › Positive Crankcase Ventilation Valve › Component Information › Locations23
Sensors and Switches - Emission Control Systems4 pages
Fuel Delivery and Air Induction252 pages
- Fuel Pressure › Diagnostic Connector - Fuel Pump › Component Information › Locations2345
- Fuel Pressure Release › System Information › Service Precautions2
Idle Speed › System Information19 pages
Technical Service Bulletins11 pages
- Specifications › Idle Specifications2
- Adjustments › Idle Speed Adjustment23456
- Air/Fuel Mixture › System Information › Adjustments
Accelerator Pedal › Accelerator Pedal Switch › Component Information › Technical Service Bulletins5 pages
- Customer Interest: › 9240008 › Dec › 92 › A/T - Harsh Shift When Stopping or Accelerating2
- All Technical Service Bulletins: › 9240008 › Dec › 92 › A/T - Harsh Shift When Stopping or Accelerating2
- All Other Service Bulletins for Accelerator Pedal Switch: › 9320002 › Mar › 93 › Radiator/Radiator Hose - Coolant Leaks
- All Other Service Bulletins for Accelerator Pedal Switch: › 9320002 › Mar › 93 › Radiator/Radiator Hose - Coolant Leaks
Accelerator Pedal Position Sensor › Component Information › Technical Service Bulletins8 pages
- Air Cleaner Housing › Air Filter Element › Component Information › Technical Service Bulletins › Air Filter - Servicing Precautions
- Air Flow Meter/Sensor › Component Information › Specifications234567
- Diagnostic Connector - Fuel Pump › Component Information › Locations2345
Fuel › Component Information › Technical Service Bulletins20 pages
- Customer Interest: › 05-20-004 › Jul › 05 › Exhaust System - Excessive Sulfur Odors
All Technical Service Bulletins for Fuel:10 pages
- Fuel Accumulator › Component Information › Locations234567
- Fuel Filler Cap › Component Information › Description and Operation2
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
Fuel Injector › Component Information5 pages
- Fuel Pressure Regulator › Component Information › Locations2345678
- Fuel Rail › Component Information › Locations234567891011
- Fuel Return Line › Component Information › Description and Operation23456
Fuel Supply Line › Component Information › Technical Service Bulletins30 pages
- Customer Interest: › 9230007 › Dec › 92 › Fuel Pump Hose - Cracked/Leaking
All Technical Service Bulletins for Fuel Supply Line:10 pages
- All Other Service Bulletins for Fuel Supply Line: › 9230007 › Dec › 92 › Fuel Pump Hose - Cracked/Leaking
All Other Service Bulletins for Fuel Supply Line:9 pages
- Fuel Tank › Fuel Tank Drain Plug › Component Information › Locations2345
- Idle Speed Motor Position Sensor › Component Information › Specifications2345
Idle Speed/Throttle Actuator - Electronic › Component Information › Technical Service Bulletins17 pages
- All Other Service Bulletins for Idle Speed/Throttle Actuator - Electronic: › 08-ST-001 › Jul › 08 › Steering - Power Steering Pump Whine
- All Other Service Bulletins for Idle Speed/Throttle Actuator - Electronic: › 08-ST-001 › Jul › 08 › Steering - Power Steering Pump Whine
- Intake Air Plenum › Component Information › Service and Repair2
- Main Relay (Computer/Fuel System) › Component Information › Locations2345
Relays and Modules - Fuel Delivery and Air Induction6 pages
- Rollover Valve, Fuel Tank › Component Information › Locations234567
Sensors and Switches - Fuel Delivery and Air Induction36 pages
Accelerator Pedal Position Sensor › Component Information › Technical Service Bulletins8 pages
Accelerator Pedal Switch › Component Information › Technical Service Bulletins4 pages
- Air Flow Meter/Sensor › Component Information › Specifications234567
- Idle Speed Motor Position Sensor › Component Information › Specifications2345
- Throttle Full Close Switch › Component Information › Locations234
Throttle Position Sensor › Component Information › Technical Service Bulletins8 pages
- Throttle Body › Throttle Plate - PFI › Component Information › Technical Service Bulletins › Throttle Valve - Inspection and Cleaning
- Throttle Cable/Linkage › Component Information › Specifications2345
- Throttle Full Close Switch › Component Information › Locations234
Throttle Position Sensor › Component Information › Technical Service Bulletins9 pages
- Customer Interest: › 97-40-031 › Sep › 97 › A/T - Driveability Concerns234
- All Technical Service Bulletins: › 97-40-031 › Sep › 97 › A/T - Driveability Concerns234
- All Other Service Bulletins for Throttle Position Sensor: › 9640011 › Jul › 96 › A/T - Will Not Engage Overdrive
- All Other Service Bulletins for Throttle Position Sensor: › 9640011 › Jul › 96 › A/T - Will Not Engage Overdrive
Ignition System49 pages
- Firing Order › Component Information › Specifications
- Camshaft Position Sensor › Component Information › Description and Operation2
Crankshaft Position Sensor › Component Information7 pages
- Distributor, Ignition › Distributor Hold-Down › Component Information › Technical Service Bulletins › Distributor Hold Down Stud - Modified2
- Ignition Cable › Component Information › Testing and Inspection2
Ignition Coil › Component Information › Technical Service Bulletins2 pages
Ignition Control Module › Component Information5 pages
- Ignition Timing Connector › Component Information › Locations › Component Locations2
Relays and Modules - Ignition System › Ignition Control Module › Component Information5 pages
Sensors and Switches - Ignition System13 pages
- Camshaft Position Sensor › Component Information › Description and Operation2
Crankshaft Position Sensor › Component Information7 pages
- Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair234
- Spark Plug › Component Information › Specifications23
Transmission Control Systems50 pages
Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T › Control Module, A/T › Component Information › Technical Service Bulletins24 pages
All Technical Service Bulletins for Control Module:12 pages
All Other Service Bulletins for Control Module:8 pages
Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T26 pages
Band Apply Servo Switch, A/T › Component Information › Technical Service Bulletins6 pages
- Downshift Switch, A/T › Component Information › Locations
- Transmission Position Switch/Sensor, A/T › Component Information › Description and Operation
Transmission Speed Sensor, A/T › Component Information › Technical Service Bulletins16 pages
All Technical Service Bulletins for Transmission Speed Sensor:8 pages
All Other Service Bulletins for Transmission Speed Sensor:4 pages
Transmission Temperature Sensor/Switch, A/T › Component Information › Technical Service Bulletins2 pages