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.
2018 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE
Section 47 (Engine Control System (Introduction) (3.0L))
WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
- Precaution
- Preparation
- System Description
- Component Parts
- Component Parts Location
- Accelerator Pedal Position Sensor
- Air Fuel Ratio (A/F) Sensor 1
- ASCD Steering Switch
- Battery Current Sensor (With Battery Temperature Sensor)
- Charge Air Cooler Coolant Temperature Sensor
- Charge Air Cooler Cooling Electric Water Pump
- Cooling Fan
- Crankshaft Position Sensor
- ECM (With Barometric Pressure Sensor)
- Electric Intake Valve Timing Control Actuator
- Electric Intake Valve Timing Control Module
- Electric Throttle Control Actuator
- Engine Coolant Temperature Sensor 1
- Engine Coolant Temperature Sensor 2
- Engine Oil Pressure Control Solenoid Valve
- Engine Oil Pressure Sensor
- Engine Oil Temperature Sensor
- EVAP Canister Purge Volume Control Solenoid Valve
- EVAP Canister Vent Control Valve
- EVAP Control System Pressure Sensor
- Exhaust Camshaft Position Sensor
- Exhaust Gas Temperature Sensor
- Exhaust Valve Timing Control Solenoid Valve
- Fuel Injector
- Fuel Level Sensor
- Fuel Pump Control Module
- Fuel Rail Pressure Sensor
- Fuel Tank Temperature Sensor
- Heated Oxygen Sensor 2
- High Pressure Fuel Pump
- ICC Steering Switch
- Ignition Coil and Spark Plug
- Intake Camshaft Position Sensor
- Knock Sensor
- Low Pressure Fuel Pump
- Manifold Absolute Pressure Sensor
- Mass Air Flow Sensor (With Intake Air Temperature Sensor 1)
- Multi-way Control Valve
- Refrigerant Pressure Sensor
- Stop Lamp Switch Brake Pedal Position Switch
- Turbocharger
- Turbocharger Boost Sensor (With Intake Air Temperature Senso
- Turbocharger Speed Sensor
- Structure And Operation
- System
- Engine Control System
- Direct Injection Gasoline System
- Fuel Pressure Control
- Engine Oil Pressure Control System
- Electric Ignition System
- Air Conditioning Cut Control
- Automatic Speed Control Device (ASCD)
- Can Communication
- Cooling System
- Thermal Management Control
- Evaporative Emission System
- Fuel Filler Cap Warning System
- Intake Valve Timing Control
- Exhaust Valve Timing Control
- Turbocharger Boost Control
- Fuel Pump Control Module (FPCM)
- Infiniti Drive Mode Selector
- Oil Control System
- Information Display (Combination Meter)
- Warning/Indicator/Chime List
- Operation
- Handling Precaution
- On Board Diagnostic (OBD) System
- Diagnosis System (ECM)
- Component Parts
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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