Engine Oil Pressure: Inspection

Disconnect the ground terminal from battery sensor. Refer to REPAIR CONTENTS>NOTE>BATTERY .
Remove the oil pressure switch. Refer to LUBRICATION (H4DO)>OIL PRESSURE SWITCH>REMOVAL .
Install the oil pressure gauge to the installation area for the oil pressure switch of the chain cover.

Courtesy of SUBARU OF AMERICA, INC.
Connect the ground terminal to battery sensor. Refer to REPAIR CONTENTS>NOTE>BATTERY .
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 the specification, check oil pump, oil filter and lubrication line. Refer to LUBRICATION (H4DO)>SYMPTOMS AND CAUSES>INSPECTION .
- If the oil pressure warning light is ON and oil pressure is within standard, check the oil pressure system. Refer to LUBRICATION (H4DO)>OIL PRESSURE SYSTEM>INSPECTION .
Engine oil pressure:

While idling (no load and select lever in "P" or "N" range)

Standard

47 kPa (0.5 kg/cm² , 7 psi) or more (at 3,000 r/min)

Standard

230 kPa (2.3 kg/cm² , 33 psi) or more
After inspection, install the related parts in the reverse order of removal.