Checking The Oil Pressure Sensor - SELVA MARINE Grey Whale 200 EFI Service Manual

NOTE:
• The intake manifold (STBD), positive bat-
tery cable, positive battery terminal, and
holder (oil pressure sensor lead, isolator
lead, and PTT lead) must be removed
before removing the oil pressure sensor.
• Use a general oil pressure gauge 1.
3. Start the engine and warm it up for 5 min-
utes.
4. Measure the oil pressure. Check for oil
leakage and check the oil pump and oil
strainer if out of specification.
NOTE:
• If the engine is started with the coupler dis-
connected from the oil pressure sensor, the
ECM will determine that an oil pressure
sensor malfunction (trouble code 39) has
occurred and increase the engine idle
speed (approximately 900 r/min). Delete
the diagnosis record using the YDIS after
checking the oil pressure.
• The actual oil pressure may vary depend-
ing on the temperature and viscosity of the
engine oil being used.
Oil pressure (reference data):
600 kPa (6.0 kgf/cm
600–900 r/min

Checking the oil pressure sensor

1. Connect the test harness (3 pins) 1 to
the oil pressure sensor.
6AL3J11
1
S6AL5B30
2
, 87.0 psi) at
Power unit (check and adjustment)
P/W O
B
B
G/W
2. Start the engine and warm it up for 5 min-
utes.
3. Measure the oil pressure sensor input
voltage. Check the wiring harness con-
nection or replace the ECM if out of spec-
ification.
1
P/W
B
O
G
S6AL5020
5-2
1
2
3
4
5
6
7
8
9