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Home >> Subaru >> 2016 >> WRX Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Mechanical (WRX-STI)) >> Engine Oil Pressure >> Inspection

Engine Oil Pressure: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the ground cable from battery.
  2. Remove the oil pressure switch. < Ref. to REMOVAL , Oil Pressure Switch. >
  3. Install the oil pressure gauge to cylinder block.
    Fig 1: Inspecting Engine Oil Pressure
    G05955092Courtesy of SUBARU OF AMERICA, INC.
  4. Install the generator. < Ref. to INSTALLATION , Generator. >
  5. Connect the battery ground terminal.
  6. Start the engine, and check the oil pressure.
    NOTE:
    • Standard value is based on an engine oil temperature of 80°C (176°F).
    • If the oil pressure is out of specification, check oil pump, oil filter and lubrication line. < Ref. to INSPECTION , Engine Lubrication System Trouble in General. >
    • If the oil pressure warning light is ON and oil pressure is within specification, check the oil pressure switch. < Ref. to INSPECTION , Engine Lubrication System Trouble in General. >

    Engine oil pressure: 

    While idling (no load and gear shift lever in neutral position) 

    Standard 

    102 kPa (1.0 kg/cm 2  , 15 psi) or more (at 3,000 r/min) 

    Standard 

    451 kPa (4.6 kg/cm 2  , 65 psi) or more 

  7. After inspection, install the related parts in the reverse order of removal.