Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Nissan-Datsun Sentra SFACTORY OEM SERVICE PROCEDURE
Engine Control System (1 Of 2)
- Precaution
- Preparation
- System Description
- Component Location
- Engine Control System
- Accelerator Pedal Position Sensor
- ASCD Steering Switch
- Cooling Fan
- Clutch Pedal Position Switch
- Crankshaft Position Sensor
- ECM
- Electric Intake Valve Timing Control Actuator
- Electric Intake Valve Timing Control Module
- Electric Throttle Control Actuator
- Engine Coolant Temperature Sensor
- Engine Oil Temperature Sensor
- EVAP Canister
- EVAP Canister Purge Volume Control Solenoid Valve
- EVAP Canister Vent Control Valve
- EVAP Control System Pressure Sensor
- Exhaust Camshaft Position Sensor
- Exhaust Valve Timing Control Solenoid Valve
- Fuel Rail Pressure Sensor
- Fuel Tank Temperature Sensor
- Heated Oxygen Sensor 2
- High Pressure Fuel Pump
- Hood Switch
- Ignition Coil With Power Transistor
- Intake Manifold Runner Control Valve
- Knock Sensor
- Manifold Absolute Pressure Sensor
- Mass Air Flow Sensor (With Intake Air Temperature Sensor 1)
- Refrigerant Pressure Sensor
- Reverse/Neutral Position Switch
- Brake Pedal Position Switch
- Air Fuel Ratio Sensor 1
- EGR Volume Control Valve
- Engine Oil Pressure Sensor
- Exhaust Gas Temperature Sensor
- Fuel Injector
- Fuel Level Sensor Unit And Fuel Pump
- Intake Camshaft Position Sensor
- Intake Valve Timing Control Solenoid Valve
- Structure And Operation
- System
- Engine Control System
- Air Conditioning Cut Control
- Automatic Speed Control Device (ASCD)
- Can Communication
- Cooling Fan Control
- Dig (Direct Injection Gasoline) System
- ECO Mode System
- EGR System
- Electric Ignition System
- Engine Protection Control At Low Engine Oil Pressure
- Engine Warning
- Evaporative Emission System
- Exhaust Valve Timing Control
- Fuel Filler Cap Warning System
- Fuel Pressure Control
- Idle Speed Control
- Information Display (Combination Meter)
- Intake Manifold Runner Control
- Intake Valve Timing Control
- Integrated Control Of Engine, CVT, And Abs
- On Board Refueling Vapor Recovery (ORVR)
- Power Generation Voltage Variable Control System
- Warning/Indicator/Chime List
- On Board Diagnostic (OBD) System
- Diagnosis System (ECM)
- Component Location
- Ecu Diagnosis Information
- Wiring Diagram
- Basic Inspection
- Diagnosis And Repair Work Flow
- Additional Service When Replacing ECM
- Accelerator Pedal Released Position Learning
- Basic Inspection
- EGR Volume Control Valve Position Learning
- Fuel Pressure Check
- How To Set SRT Code
- How To Erase Permanent DTC
- Idle Air Volume Learning
- Mixture Ratio Self-Learning Value Clear
- Starter Operation Counter Clear
- Throttle Valve Closed Position Learning
- VIN Registration
- Electric IVT Control Actuator Position Learning
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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