2017 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE

Test Item

Test item Full spell Condition
BOOST PRESSURE CONTROL PRESSURE TRANSDUCER BOOST PRESSURE CONTROL PRESSURE TRANSDUCER Follow the instruction of CONSULT display.
CAMSHAFT POSITIONER CAMSHAFT POSITIONER
  • Apply parking brake.
  • Move selector lever to position 'P' or 'N' on vehicles with automatic transmission.
  • During the test the engine speed must be between 2, 700 and 3, 500 RPM.
CAUSES OF ENGINE STOP PREVENTION CAUSES OF ENGINE STOP PREVENTION Follow the instruction of CONSULT display.
CHECK ACTIVATED CHARCOAL CANISTER SHUTOFF VALVE CHECK ACTIVATED CHARCOAL CANISTER SHUTOFF VALVE Follow the instruction of CONSULT display.
CHECK BOOST PRESSURE CONTROL CHECK BOOST PRESSURE CONTROL Follow the instruction of CONSULT display.
Check purging pressure control Check purging pressure control Follow the instruction of CONSULT display.
Check coolant thermostat heating element Check coolant thermostat heating element Follow the instruction of CONSULT display.
CHECK COOLANT PUMP SWITCHOVER VALVE CHECK COOLANT PUMP SWITCHOVER VALVE Follow the instruction of CONSULT display.
CHECK CYLINDER FUEL INJECTORS CHECK CYLINDER FUEL INJECTORS Follow the instruction of CONSULT display.
CHECK CYLINDER FUEL INJECTORS FOR LEAKS CHECK CYLINDER FUEL INJECTORS FOR LEAKS Follow the instruction of CONSULT display.
CHECK DECELERATION AIR SWITCHOVER VALVE CHECK DECELERATION AIR SWITCHOVER VALVE
  • Combustion engine AT STANDSTILL.
  • Ignition ON.
CHECK ENGINE OIL PUMP VALVE CHECK ENGINE OIL PUMP VALVE
  • Combustion engine AT STANDSTILL.
  • Ignition ON.
CHECK EXHAUST CAMSHAFT SOLENOID CHECK EXHAUST CAMSHAFT SOLENOID
  • The ignition is switched on.
  • Engine running at idle
  • Coolant temperature > 80°C (176°F)
CHECK FUEL HIGH PRESSURE CIRCUIT CHECK FUEL HIGH PRESSURE CIRCUIT
  • Ignition ON.
  • Apply parking brake.
CHECK FUEL HI PRESS CIRC FOR LEAKTIGHTNESS CHECK FUEL HIGH PRESSURE CIRCUIT FOR LEAKTIGHTNESS
  • Ignition ON.
  • Coolant temperature between 75°C and 105°C (167°F and 221°F)
  • Fuel temperature between 40°C and 80°C (104°F and 176°F)
  • Start combustion engine.
  • Combustion engine IDLING
  • Switch off all current consumers.
  • Connect charger for battery.
CHECK FUEL PRESSURE AND TEMPERATURE SENSOR RAIL PRESSURE CHECK FUEL PRESSURE AND TEMPERATURE SENSOR
  • Combustion engine IDLING.
  • Coolant temperature between 75°C (167°F) and 105°C (221°F)
  • All electrical accessories must be switched OFF.
Check fuel tank pressure sensor Check fuel tank pressure sensor Follow the instruction of CONSULT display.
CHECK INTAKE CAMSHAFT SOLENOID CHECK INTAKE CAMSHAFT SOLENOID
  • The ignition is switched ON.
  • Engine running at idle
  • Coolant temperature > 80°C (176°F)
CHECK INTAKE CAMSHAFT VALVE LIFT SWITCHING ACTUATOR CHECK INTAKE CAMSHAFT VALVE LIFT SWITCHING ACTUATOR Follow the instruction of CONSULT display.
CHECK LEAK TEST OF FUEL TANK CHECK LEAK TEST OF FUEL TANK Follow the instruction of CONSULT display.
CHECK POWER SUPPLY CHECK POWER SUPPLY Follow the instruction of CONSULT display.
CHECK PURGING SWITCHOVER VALVE CHECK PURGING SWITCHOVER VALVE
  • Combustion engine AT STANDSTILL
  • Ignition ON.
CHECK SYSTEM DRIVE AUTHORIZATION CHECK SYSTEM DRIVE AUTHORIZATION Follow the instruction of CONSULT display.
CHECK THROTTLE VALVE ACTUATOR CHECK THROTTLE VALVE ACTUATOR
  • Coolant temperature > 80°C (176°F)
  • Ignition ON
  • The combustion engine is at a standstill.
  • Accelerator pedal NOT OPERATED
CK ENG AND AC WITH INTGRTED CONT FAN MOTOR CK ENG AND AC WITH INTGRTED CONT FAN MOTOR Follow the instruction of CONSULT display.
COMPONENT QUANTITY CONTROL VALVE COMPONENT QUANTITY CONTROL VALVE Follow the instruction of CONSULT display.
COMPRESSION TEST COMPRESSION TEST Follow the instruction of CONSULT display.
ENGINE DIAGNOSIS INDICATOR LAMP ENGINE DIAGNOSIS INDICATOR LAMP Follow the instruction of CONSULT display.
Malfunction status of stop/start system Malfunction status of stop/start system Follow the instruction of CONSULT display.
FUEL PUMP FUEL PUMP Follow the instruction of CONSULT display.
MIXTURE ADAPTATION MIXTURE ADAPTATION
  • Engine speed: 400 - 800 RPM
  • Coolant temperature between 40°C (104°F) and 80°C (176°F)
  • Engine load: 30% or less
  • Selector lever: P or N
MIXTURE FORMATION MIXTURE FORMATION Follow the instruction of CONSULT display.
PARTIAL LOAD OPERATION CRANKCASE VENTILATION VALVE PARTIAL LOAD OPERATION CRANKCASE VENTILATION VALVE Follow the instruction of CONSULT display.
Purging switchover valve Purging switchover valve Follow the instruction of CONSULT display.
QUANTITY CONTROL VALVE QUANTITY CONTROL VALVE Follow the instruction of CONSULT display.
RAIL PRESSURE REDUCTION RAIL PRESSURE REDUCTION Follow the instruction of CONSULT display.
REQUIREMENTS FOR AUTOMATIC ENGINE START REQUIREMENTS FOR AUTOMATIC ENGINE START Follow the instruction of CONSULT display.
THROTTLE VALVE ACTUATOR THROTTLE VALVE ACTUATOR Follow the instruction of CONSULT display.
THROTTLE VALVE STICKS ICED UP THROTTLE VALVE STICKS ICED UP Follow the instruction of CONSULT display.
WIDE OPEN THROTTLE OPERATION VENT LINE HEATING ELEMENT WIDE OPEN THROTTLE OPERATION VENT LINE HEATING ELEMENT Follow the instruction of CONSULT display.
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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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