Prelude Type-SH L4-2157cc 2.2L DOHC H22A4 (VTEC) 16V (1998)
10. Remove the engine oil pressure switch, and install an oil pressure gauge.
11. Reinstall exhaust pipe A, and reconnect the primary H02S.
12. Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing.
13. Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:
Engine oil Temperature: 176°F (80°C)
Engine Oil Pressure:
At Idle: 69 kPa (0.7 kgf/cm2, 10 psi) minimum
At 3,000 rpm: 340 kPa (3.5 kgf/cm2, 50 psi) minimum
If oil pressure is not within specifications, inspect the oil pump.