Subaru 2009 IMPREZA Service Manual page 1082

MECHANICAL
6. Engine Oil Pressure
A: INSPECTION
1) Disconnect the ground cable from battery.
2) Remove the oil pressure switch. <Ref. to
LU(H4SO)-19, REMOVAL, Oil Pressure Switch.>
3) Install the oil pressure gauge to cylinder block.
4) Connect the ground cable to battery.
5) Start the engine, and measure the oil pressure.
Engine oil pressure:
Standard
2
98 kPa (1.0 kgf/cm
(at 600 rpm)
294 kPa (3.0 kgf/cm
(at 5,000 rpm)
• If the oil pressure is out of specification, check oil
pump, oil filter and lubrication line. <Ref. to
LU(H4SO)-22, INSPECTION, Engine Lubrication
System Trouble in General.>
• If the oil pressure warning light is ON and oil
pressure is within specification, check the oil pres-
sure switch. <Ref. to LU(H4SO)-22, INSPECTION,
Engine Lubrication System Trouble in General.>
Engine Oil Pressure
IN-00203
IN-00203
ME-03698
, 14 psi) or more
2
, 43 psi) or more
ME(H4DOTC)-24
NOTE:
Standard value is based on an engine oil tempera-
ture of 80°C (176°F).
6) After measuring the oil pressure, install the oil
pressure switch. <Ref. to LU(H4SO)-19, INSTAL-
LATION, Oil Pressure Switch.>