Acura CSX. Instruction - page 64
*01
SNR9AEAA32200000000DAAT00
K20Z2 engine
8-3
Component Location Index
OIL PRESSURE SWITCH
OIL FILTER
OIL PUMP
DRAIN BOLT
O-RING
OIL PAN
BAFFLE PLATE
OIL CONTROL ORIFICE
OIL PUMP CHAIN GUIDE
CRANKSHAFT SPROCKET
OIL PUMP CHAIN TENSIONER
BAFFLE PLATE
OIL FILTER FEED PIPE
WASHER
Circuit Diagram, page 8-6
Test, page 8-9
Replacement, page 8-9
Oil Pressure Test, page 8-10
Replacement, page 8-11
Overhaul, page 8-15
Removal, page 7-11
Installation, page 7-29
Replacement, page 8-12
*01
SNR9AEBA32200000000DAAT01
K20Z3 engine
8-4
Engine Lubrication
OIL PRESSURE SWITCH
OIL FILTER
OIL PUMP
DRAIN BOLT
O-RING
OIL PAN
BAFFLE PLATE
OIL CONTROL ORIFICE
OIL PUMP CHAIN GUIDE
CRANKSHAFT SPROCKET
OIL PUMP CHAIN TENSIONER
BAFFLE PLATE
OIL COOLER
WASHER
OIL COOLER CENTER BOLT
OIL JETS
Circuit Diagram, page 8-6
Test, page 8-9
Replacement, page 8-9
Oil Pressure Test, page 8-10
Replacement, page 8-11
Overhaul, page 8-15
Removal, page 7-11
Installation, page 7-29
Replacement, page 8-13
Inspection, page 8-14
SNR9A00A32200000000HBAT01
Symptom
Diagnostic procedure
Also check for
8-5
Symptom Troubleshooting Index
Excessive engine oil
consumption
1.
2.
3.
4.
5.
Verify that the engine oil filler cap, the oil drain
bolt, and the oil filter are tight.
Check for oil leaks.
Check for worn valve guide(s) (see page 6-55) or
worn valve stem seal(s) (see page 6-54).
Check for damaged or worn piston ring(s)
(see page 7-21).
Check for damaged or worn engine internal parts
(cylinder wall, pistons, etc.) (see page 7-16).
Low oil pressure indicator does
not come on with the ignition
switch in ON (II)
1.
2.
Do the low oil pressure indicator circuit
troubleshooting (Open) (see page 8-7).
Test the oil pressure switch (see page 8-9).
An open in the wire
between the engine
control module (ECM)/
powertrain control
module (PCM) and the
oil pressure switch
Low oil pressure indicator stays
on
1.
2.
3.
4.
5.
6.
7.
8.
Check the engine oil level.
Do the low oil pressure indicator circuit
troubleshooting (Short) (see page 8-8).
Test the oil pressure switch (see page 8-9).
Check the engine oil pressure (see page 8-10).
Check the oil filter for clogging.
Check the oil screen for clogging.
Check the relief valve (see page 8-15).
Test the oil pump (see page 8-17).
A wire shorted to
ground between the
ECM/PCM and the oil
pressure switch
*01
SNR9A00A32200037501EAAT00
8-6
Engine Lubrication
Low Oil Pressure Indicator Circuit Diagram
D2
Q9
H1
19
1
17
3
6
B7
CANL
CANH
DRIVER
BRN
12 V
5 V
GAUGE CONTROL MODULE (TACH)
IGNITION SWITCH
BAT
IG1
ECM/PCM
OPSW
A37
A36
RED
WHT
CPU
No. 2 (50 A)
No. 10
(7.5 A)
BATTERY
UNDER-HOOD FUSE/RELAY BOX
No. 1 (100 A)
YEL/RED
UNDER-DASH
FUSE/RELAY BOX
LOW OIL
PRESSURE
INDICATOR
OIL PRESSURE SWITCH
(Closed: Lost pressure)
IG1 HOT in ON (II)
and START (III)
1
WHT
BLU
CANH
CANL