240SX L4-2389cc 2.4L SOHC MFI (KA24E) (1989): Powertrain Management
Also for this vehicle: 240SX Coupe L4-2.4L (KA24DE) (1997), 240SX L4-2.4L (KA24DE) (1993), 240SX LE L4-2.4L (KA24DE) (1998).
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 Management234 pages
Relays and Modules - Computers and Control Systems207 pages
Engine Control Module › Component Information192 pages
Technical Service Bulletins180 pages
All Technical Service Bulletins for Engine Control Module:90 pages
- 95070 › Jul › 95 › ECM - Green or Blue Relay Caution
- 95059 › Jun › 95 › Engine Controls - ECM Testing Precautions
- 94-097 › Nov › 94 › Engine Controls - Engine Control Module Identification2345678910
- 93-176 › Nov › 93 › ECM - Relay (Type 1M) Green or Blue Precautions
- 93013 › Nov › 93 › Engine Controls - ECM Identification23456789
- 93-167 › Nov › 93 › Engine Controls - ECM Identification List2345678910
- 93161 › Nov › 93 › Engine Controls - ECM Testing and Notes234567
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-043 › May › 91 › ECU - Connector Installation Procedure2
- EF91002 › May › 91 › Engine Controls - ECM Connector Misaligned2
- 91-022 › Mar › 91 › Fuel - Idle Speed Fluctuation
- EF91001 › Mar › 91 › Engine Controls - Idle Fluctuation
- 90-085 › Oct › 90 › Exhaust System - Sulfur Odor
- EF90009 › Oct › 90 › Engine Controls - Exhaust Odor Inspection Procedures
- EF89004 › May › 89 › Multiple Systems - Changes For Improved Durability234567891011121314151617181920212223
All Other Service Bulletins for Engine Control Module:86 pages
- 95070 › Jul › 95 › ECM - Green or Blue Relay Caution
- 95059 › Jun › 95 › Engine Controls - ECM Testing Precautions
- 94-097 › Nov › 94 › Engine Controls - Engine Control Module Identification2345678910
- 93-176 › Nov › 93 › ECM - Relay (Type 1M) Green or Blue Precautions
- 93013 › Nov › 93 › Engine Controls - ECM Identification23456789
- 93-167 › Nov › 93 › Engine Controls - ECM Identification List2345678910
- 93161 › Nov › 93 › Engine Controls - ECM Testing and Notes234567
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-043 › May › 91 › ECU - Connector Installation Procedure2
- EF91002 › May › 91 › Engine Controls - ECM Connector Misaligned2
- EF89004 › May › 89 › Multiple Systems - Changes For Improved Durability234567891011121314151617181920212223
- Specifications › After Engine KA24-01203923456789101112
- Idle Air Adjusting (IAA) Unit <--> [Idle/Throttle Speed Control Unit] › Component Information › Locations
ECCS (Engine Management) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information14 pages
Relays and Modules - Fuel Delivery and Air Induction20 pages
Fuel Pump Relay › Component Information5 pages
- Idle Air Adjusting (IAA) Unit <--> [Idle/Throttle Speed Control Unit] › Component Information › Locations
ECCS (Engine Management) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information14 pages
Sensors and Switches - Powertrain Management196 pages
Sensors and Switches - Computers and Control Systems141 pages
Air Flow Meter/Sensor › Component Information12 pages
- Clutch Switch, ECM › Component Information › Testing and Inspection2
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations › After Engine KA24-01203923456
Crankshaft Position Sensor › Component Information11 pages
Intake Air Temperature Sensor › Component Information49 pages
- Power Steering Pressure Switch › Component Information › Locations › Up to Engine KA24-01203923456
Throttle Position Sensor › Component Information8 pages
Throttle Position Switch › Component Information6 pages
Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information8 pages
Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information15 pages
Sensors and Switches - Fuel Delivery and Air Induction26 pages
Air Flow Meter/Sensor › Component Information12 pages
Throttle Position Sensor › Component Information8 pages
Throttle Position Switch › Component Information6 pages
Sensors and Switches - Ignition System14 pages
Tune-up and Engine Performance Checks117 pages
- Fuel Pressure › System Information › Specifications2
- Air/Fuel Mixture › System Information › Adjustments2
Idle Speed › System Information53 pages
Technical Service Bulletins50 pages
All Technical Service Bulletins for Idle Speed:25 pages
- 96-032 › Apr › 96 › Engine Controls - Idle, Base Idle & Timing, Startability2
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-022 › Mar › 91 › Fuel - Idle Speed Fluctuation
- EF91001 › Mar › 91 › Engine Controls - Idle Fluctuation
- 90-085 › Oct › 90 › Exhaust System - Sulfur Odor
- Adjustments › After Engine KA24-01203923
Air Cleaner Housing › Component Information › Technical Service Bulletins2 pages
- Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
- Firing Order › Component Information › Specifications
Ignition Cable › Component Information5 pages
- Spark Plug › Component Information › Specifications › Torque Specifications2
Compression Check › System Information › Technical Service Bulletins40 pages
- Valve Clearance › System Information › Specifications
Computers and Control Systems719 pages
Air Flow Meter/Sensor › Component Information12 pages
Intake Air Temperature Sensor › Component Information49 pages
- Auxiliary Air Valve (Idle Speed) › Component Information › Specifications › Electrical Specifications2
- Clutch Switch, ECM › Component Information › Testing and Inspection2
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations › After Engine KA24-01203923456
Crankshaft Position Sensor › Component Information11 pages
- Data Link Connector › Component Information › Technical Service Bulletins › Engine Controls - Check Connector For ECCS Checker Box
- EGR Backpressure Transducer › Component Information › Specifications234
Engine Control Module › Component Information192 pages
Technical Service Bulletins180 pages
All Technical Service Bulletins for Engine Control Module:90 pages
- 95070 › Jul › 95 › ECM - Green or Blue Relay Caution
- 95059 › Jun › 95 › Engine Controls - ECM Testing Precautions
- 94-097 › Nov › 94 › Engine Controls - Engine Control Module Identification2345678910
- 93-176 › Nov › 93 › ECM - Relay (Type 1M) Green or Blue Precautions
- 93013 › Nov › 93 › Engine Controls - ECM Identification23456789
- 93-167 › Nov › 93 › Engine Controls - ECM Identification List2345678910
- 93161 › Nov › 93 › Engine Controls - ECM Testing and Notes234567
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-043 › May › 91 › ECU - Connector Installation Procedure2
- EF91002 › May › 91 › Engine Controls - ECM Connector Misaligned2
- 91-022 › Mar › 91 › Fuel - Idle Speed Fluctuation
- EF91001 › Mar › 91 › Engine Controls - Idle Fluctuation
- 90-085 › Oct › 90 › Exhaust System - Sulfur Odor
- EF90009 › Oct › 90 › Engine Controls - Exhaust Odor Inspection Procedures
- EF89004 › May › 89 › Multiple Systems - Changes For Improved Durability234567891011121314151617181920212223
All Other Service Bulletins for Engine Control Module:86 pages
- 95070 › Jul › 95 › ECM - Green or Blue Relay Caution
- 95059 › Jun › 95 › Engine Controls - ECM Testing Precautions
- 94-097 › Nov › 94 › Engine Controls - Engine Control Module Identification2345678910
- 93-176 › Nov › 93 › ECM - Relay (Type 1M) Green or Blue Precautions
- 93013 › Nov › 93 › Engine Controls - ECM Identification23456789
- 93-167 › Nov › 93 › Engine Controls - ECM Identification List2345678910
- 93161 › Nov › 93 › Engine Controls - ECM Testing and Notes234567
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-043 › May › 91 › ECU - Connector Installation Procedure2
- EF91002 › May › 91 › Engine Controls - ECM Connector Misaligned2
- EF89004 › May › 89 › Multiple Systems - Changes For Improved Durability234567891011121314151617181920212223
- Specifications › After Engine KA24-01203923456789101112
Auxiliary Air Control (AAC) Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information6 pages
Fast Idle Control Device (F.I.C.D.) <--> [Idle Up Control Valve] › Component Information9 pages
- Idle Air Adjusting (IAA) Unit <--> [Idle/Throttle Speed Control Unit] › Component Information › Locations
ECCS (Engine Management) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information14 pages
- Malfunction Indicator Lamp › Component Information › Description and Operation
- Power Steering Pressure Switch › Component Information › Locations › Up to Engine KA24-01203923456
Relays and Modules - Computers and Control Systems207 pages
Engine Control Module › Component Information192 pages
Technical Service Bulletins180 pages
All Technical Service Bulletins for Engine Control Module:90 pages
- 95070 › Jul › 95 › ECM - Green or Blue Relay Caution
- 95059 › Jun › 95 › Engine Controls - ECM Testing Precautions
- 94-097 › Nov › 94 › Engine Controls - Engine Control Module Identification2345678910
- 93-176 › Nov › 93 › ECM - Relay (Type 1M) Green or Blue Precautions
- 93013 › Nov › 93 › Engine Controls - ECM Identification23456789
- 93-167 › Nov › 93 › Engine Controls - ECM Identification List2345678910
- 93161 › Nov › 93 › Engine Controls - ECM Testing and Notes234567
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-043 › May › 91 › ECU - Connector Installation Procedure2
- EF91002 › May › 91 › Engine Controls - ECM Connector Misaligned2
- 91-022 › Mar › 91 › Fuel - Idle Speed Fluctuation
- EF91001 › Mar › 91 › Engine Controls - Idle Fluctuation
- 90-085 › Oct › 90 › Exhaust System - Sulfur Odor
- EF90009 › Oct › 90 › Engine Controls - Exhaust Odor Inspection Procedures
- EF89004 › May › 89 › Multiple Systems - Changes For Improved Durability234567891011121314151617181920212223
All Other Service Bulletins for Engine Control Module:86 pages
- 95070 › Jul › 95 › ECM - Green or Blue Relay Caution
- 95059 › Jun › 95 › Engine Controls - ECM Testing Precautions
- 94-097 › Nov › 94 › Engine Controls - Engine Control Module Identification2345678910
- 93-176 › Nov › 93 › ECM - Relay (Type 1M) Green or Blue Precautions
- 93013 › Nov › 93 › Engine Controls - ECM Identification23456789
- 93-167 › Nov › 93 › Engine Controls - ECM Identification List2345678910
- 93161 › Nov › 93 › Engine Controls - ECM Testing and Notes234567
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-043 › May › 91 › ECU - Connector Installation Procedure2
- EF91002 › May › 91 › Engine Controls - ECM Connector Misaligned2
- EF89004 › May › 89 › Multiple Systems - Changes For Improved Durability234567891011121314151617181920212223
- Specifications › After Engine KA24-01203923456789101112
- Idle Air Adjusting (IAA) Unit <--> [Idle/Throttle Speed Control Unit] › Component Information › Locations
ECCS (Engine Management) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information14 pages
Sensors and Switches - Computers and Control Systems141 pages
Air Flow Meter/Sensor › Component Information12 pages
- Clutch Switch, ECM › Component Information › Testing and Inspection2
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations › After Engine KA24-01203923456
Crankshaft Position Sensor › Component Information11 pages
Intake Air Temperature Sensor › Component Information49 pages
- Power Steering Pressure Switch › Component Information › Locations › Up to Engine KA24-01203923456
Throttle Position Sensor › Component Information8 pages
Throttle Position Switch › Component Information6 pages
Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information8 pages
Throttle Position Sensor › Component Information8 pages
Throttle Position Switch › Component Information6 pages
Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information8 pages
Emission Control Systems76 pages
Air Injection17 pages
Air Induction Valve (AIV) <--> [Air Injection Control Valve] › Component Information › Technical Service Bulletins2 pages
- Air Induction Valve <--> [Pulsair Valve, Secondary Air Injection] › Component Information › Locations23
- Pulsed Secondary Air Injection › Component Information › Locations
- Catalytic Converter › Component Information › Technical Service Bulletins › Oxygen Sensor - Thread Cleaning and Other Precautions2
Exhaust Gas Recirculation35 pages
- EGR Backpressure Transducer › Component Information › Specifications234
- EGR Control Solenoid › Component Information › Specifications › Electrical Specifications2345
EGR Temperature Sensor › Component Information15 pages
- Positive Crankcase Ventilation › Positive Crankcase Ventilation Valve › Component Information › Specifications2
Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information15 pages
Fuel Delivery and Air Induction248 pages
- Fuel Pressure › System Information › Specifications2
- Fuel Pressure Release › System Information › Service and Repair
Idle Speed › System Information53 pages
Technical Service Bulletins50 pages
All Technical Service Bulletins for Idle Speed:25 pages
- 96-032 › Apr › 96 › Engine Controls - Idle, Base Idle & Timing, Startability2
- 92066 › Aug › 92 › Engine Controls - Improved Driveability, Updates234567891011121314151617181920
- 91-022 › Mar › 91 › Fuel - Idle Speed Fluctuation
- EF91001 › Mar › 91 › Engine Controls - Idle Fluctuation
- 90-085 › Oct › 90 › Exhaust System - Sulfur Odor
- Adjustments › After Engine KA24-01203923
- Air/Fuel Mixture › System Information › Adjustments2
- Accelerator Pedal › Component Information › Description and Operation2
Air Cleaner Housing › Component Information › Technical Service Bulletins2 pages
Air Flow Meter/Sensor › Component Information12 pages
- Auxiliary Air Valve (Idle Speed) › Component Information › Specifications › Electrical Specifications2
- Fuel › Component Information › Specifications › Capacity Specifications2
- Fuel Filler Cap › Component Information › Locations
- Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
Fuel Injector › Component Information38 pages
Technical Service Bulletins28 pages
All Technical Service Bulletins for Fuel Injector:14 pages
- All Other Service Bulletins for Fuel Injector: › 92086 › Oct › 92 › Fuel - Injector Replacement Guidelines23
- Specifications › Electrical Specifications23
- Locations › After Engine KA24-012039234
- Testing and Inspection › Component Testing Procedures23
Pressure Regulator Vacuum Relief (PRVR) Solenoid <--> [Fuel Pressure Control Solenoid] › Component Information6 pages
- Fuel Pressure Regulator › Component Information › Locations23
Fuel Pump7 pages
- Fuel Pressure › System Information › Specifications2
Fuel Pump Relay › Component Information5 pages
- Fuel Return Line › Component Information › Description and Operation23
- Fuel Supply Line › Component Information › Description and Operation23
- Fuel Tank › Component Information › Specifications › Mechanical Specifications2
Auxiliary Air Control (AAC) Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information6 pages
Fast Idle Control Device (F.I.C.D.) <--> [Idle Up Control Valve] › Component Information9 pages
- Idle Air Adjusting (IAA) Unit <--> [Idle/Throttle Speed Control Unit] › Component Information › Locations
- Intake Air Collector <--> [Intake Air Plenum] › Component Information › Specifications
ECCS (Engine Management) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information14 pages
Relays and Modules - Fuel Delivery and Air Induction20 pages
Fuel Pump Relay › Component Information5 pages
- Idle Air Adjusting (IAA) Unit <--> [Idle/Throttle Speed Control Unit] › Component Information › Locations
ECCS (Engine Management) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information14 pages
Sensors and Switches - Fuel Delivery and Air Induction26 pages
Air Flow Meter/Sensor › Component Information12 pages
Throttle Position Sensor › Component Information8 pages
Throttle Position Switch › Component Information6 pages
- Throttle Body › Component Information › Description and Operation
- Throttle Cable/Linkage › Component Information › Adjustments
Throttle Position Sensor › Component Information8 pages
Throttle Position Switch › Component Information6 pages
Variable Induction System13 pages
Swirl Control Valve Actuator (SCV) <--> [Variable Induction Control Actuator] › Component Information7 pages
- Swirl Control Valve (SCV) Control Solenoid <--> [Variable Induction Control Solenoid] › Component Information › Locations2
- Swirl Control Valve <--> [Variable Induction Control Valve] › Component Information › Description and Operation › Up to Engine KA24-012039234
Ignition System64 pages
- Firing Order › Component Information › Specifications
- Ignition Resistor <--> [Ignition Ballast Resistor] › Component Information › Specifications › Up to Engine KA24-012039234
Crankshaft Position Sensor › Component Information11 pages
Ignition Cable › Component Information5 pages
Ignition Coil › Component Information5 pages
- Power Transistor <--> [Ignition Control Module] › Component Information › Locations › Up to Engine KA24-01203923456
- Ignition Coil Relay <--> [Ignition Relay] › Component Information › Locations
Sensors and Switches - Ignition System14 pages
- Spark Plug › Component Information › Specifications › Torque Specifications2
Transmission Control Systems30 pages
Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T6 pages
- Pressure Regulating Solenoid, A/T › Component Information › Locations
- Shift Interlock Solenoid › Component Information › Locations
- Over-Drive Solenoid <--> [Shift Solenoid, A/T] › Component Information › Locations › Overrun Clutch Solenoid23
- A/T Lock-Up Release Control <--> [Torque Converter Clutch Solenoid, A/T] › Component Information › Locations
- Lamps and Indicators - Transmission and Drivetrain › Lamps and Indicators - A/T › Overdrive Indicator Lamp › Component Information › Locations
Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T5 pages
Sensors and Switches - Transmission and Drivetrain18 pages
Sensors and Switches - A/T14 pages
- Downshift Switch, A/T › Component Information › Locations
- Overdrive Switch, A/T › Component Information › Locations2
Neutral Switch <--> [Transmission Position Switch/Sensor, A/T] › Component Information8 pages
- Transmission Speed Sensor, A/T › Component Information › Locations2
- Transmission Temperature Sensor/Switch, A/T › Component Information › Locations