check engine ACURA CSX 2006 Service Manual PDF


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Engine Oil Temperature: 80 °C (176 °F)
Engine Oil Pressure:
At Idle: 70 kPa (0.7 kgf/cm , 10 psi) min.
At 3,000 rpm: 300 kPa (3.1 kgf/cm , 44 psi) min.
K20Z2 engine
Capacity
AtOilChange:4.0L(4.2USqt)
At Oil Change including Filter: 4.2 L (4.4 US qt)
After Engine Overhaul: 5.3 L (5.6 US qt)
K20Z3 engine
Capacity
AtOilChange:4.2L(4.4USqt)
At Oil Change including Filter: 4.4 L (4.6 US qt)
After Engine Overhaul: 5.5 L (5.8 US qt)
2
2
8-108-10Engine Lubrication
Oil Pressure Test
Engine Oil Replacement
A A
39 N·m
(4.0 kgf·m, 29 lbf·ft)
B
NOTE: If the oil pressure warning indicator stays on
with the engine running, check the engine oil l
evel. If
the oil level is correct do the following test:
1. With the engine stopped, remove the oil pressure switch (see page 8-9), then install an oil pressure
gauge (A).
2. Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem
before continuing.
3. Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should
be:
4. If the oil pressure is out of specifications, inspect these items:
 Blocking of oil filter (see page 8-11).
 Blocking of oil screen.
 Inspect the oil pressure relief valve (see page 8-15).
 Inspect the oil pump (see page 8-17). 1. Warm up the engine.
2. Remove the drain bolt (A), and drain the engine oil.
3. Reinstall the drain bolt with a new washer (B).
4. Refill the engine with the recommended oil
(see page 3-2).
Do not overtighten.
08/08/21 14:36:43 61SNR030_080_0010
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 Special Tools Required
Tighten: 3/4 Turn Clockwise
Tightening Torque: 12 N·m (1.2 kgf·m, 8.7 lbf·ft)
8-118-11
Engine Oil Filter Replacement
A
B
07HAA-PJ70101
5. Run the engine for more than 3 minutes, then checkfor oil leakage.
6. Turn the ignition switch to LOCK (0).
7. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3).
8. Turn the ignition switch to ON (II).
9. Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain
control module (PCM). If it does not communicate,
troubleshoot the DLC circuit (see page 11- 204).
10. Select GAUGES in the BODY ELECTRICAL menu with the HDS.
11. Select ADJUSTMENT in the GAUGES menu with the HDS.
12. Select SERVICE REMINDER in the ADJUSTMENT menu with the HDS.
13. Select RESET in the SERVICE REMINDER menu with the HDS.
14. Select RESETTING THE ENGINE OIL LIFE with the HDS.
NOTE: If you changed the automatic transmission
fluid (ATF) at the same time with the engine oil,
select RESETTING THE ENGINE OIL LIFE AND ATF
with the HDS instead. Oil filter wrench 07HAA-PJ70101
1. Remove the oil filter with the oil filter wrench.
2. Inspect the filter to make sure the rubber seal is not stuck to the oil filter seating surface of the engine.
3. Inspect the threads (A) and rubber seal (B) on the new filter. Clean the seat on the engine block, then
apply a light coat of new engine oil to the filter
rubber seal. Use only filters with a built-in bypass
system.
4. Install the oil filter by hand.
5. After the rubber seal seats, tighten the oil filter clockwise with the oil filter wrench.
(cont’d)
08/08/21 14:36:43 61SNR030_080_0011
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 Special Tools Required
Tighten: 3/4 Turn Clockwise
Tightening Torque: 12 N·m (1.2 kgf·m, 8.7 lbf·ft)
8-118-11
Engine Oil Filter Replacement
A
B
07HAA-PJ70101
5. Run the engine for more than 3 minutes, then checkfor oil leakage.
6. Turn the ignition switch to LOCK (0).
7. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3).
8. Turn the ignition switch to ON (II).
9. Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain
control module (PCM). If it does not communicate,
troubleshoot the DLC circuit (see page 11- 204).
10. Select GAUGES in the BODY ELECTRICAL menu with the HDS.
11. Select ADJUSTMENT in the GAUGES menu with the HDS.
12. Select SERVICE REMINDER in the ADJUSTMENT menu with the HDS.
13. Select RESET in the SERVICE REMINDER menu with the HDS.
14. Select RESETTING THE ENGINE OIL LIFE with the HDS.
NOTE: If you changed the automatic transmission
fluid (ATF) at the same time with the engine oil,
select RESETTING THE ENGINE OIL LIFE AND ATF
with the HDS instead. Oil filter wrench 07HAA-PJ70101
1. Remove the oil filter with the oil filter wrench.
2. Inspect the filter to make sure the rubber seal is not stuck to the oil filter seating surface of the engine.
3. Inspect the threads (A) and rubber seal (B) on the new filter. Clean the seat on the engine block, then
apply a light coat of new engine oil to the filter
rubber seal. Use only filters with a built-in bypass
system.
4. Install the oil filter by hand.
5. After the rubber seal seats, tighten the oil filter clockwise with the oil filter wrench.
(cont’d)
08/08/21 14:36:43 61SNR030_080_0011
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K20Z2 engine
8-128-12 Engine Lubrication
Engine Oil Filter Replacement
(cont’d)
Oil Filter Feed Pipe Replacement
A
6. If four numbers or marks (1 to 4 or to )
are printed around the outside of the filter, use the
following procedure to tighten the filter.
 Spin the filter on until its seal lightly seats against the engine block, and note which number or
mark is at the bottom.
 Tighten the filter by turning it clockwise three numbers or marks from the one you noted. For
example, if number 2 is at the bottom when the
seal is seated, tighten the filter until the number 1
comes around the bottom.
Number or
Mark when
rubber seal
is seated 1
or 2
or 3
or 4
or
Number or
Mark after
tightening 4
or 1
or 2
or 3
or
7. After installation, fill the engine with oil up to the specified level, run the engine for more than
3 minutes, then check for oil leakage. 1. Remove the oil filter (see page 8-11).
2. Remove the oil filter feed pipe.
3. Install the two 20 x 1.5 mm nuts (A) onto the new oil
filter feed pipe. Hold one nut with a wrench, then
use a second wrench to tighten the other nut.
4. Tighten the oil filter feed pipe to the block to 49 N·m (5.0 kgf·m, 36 lbf·ft), then remove the nuts
from the oil filter feed pipe.
5. Install the oil filter (see page 8-11).
Mark when rubber
seal is seated. Mark after tightening.
08/08/21 14:36:44 61SNR030_080_0012
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K20Z3 engine
Torque: 16 N·m (1.6 kgf·m, 12 lbf·ft)
8-14Engine Lubrication
Oil Jet Inspection
1.2 mm (0.05 in.)
1.2 mm
(0.05 in.)
A
B
1. Remove the oil jet, and inspect it as follows. Make sure that a 1.1 mm (0.04 in.) diameter drillwill go through the nozzle hole (A) (1.2 mm
(0.05 in.) diameter).
 Insert the other end of a 1.1 mm (0.04 in.) drill into the oil intake (1.2 mm (0.05 in.) diameter).
Make sure the check ball (B) moves smoothly and
has a stroke of approximately 4.0 mm (0.16 in.).
 Check the oil jet operation with an air nozzle. It should take at least 200 kPa (2.0 kgf/cm , 28 psi)
to unseat the check ball.
NOTE: Replace the oil jet assembly if the nozzle is
damaged or bent.
2. Carefully install the oil jet. The mounting torque is critical.
2
08/08/21 14:36:45 61SNR030_080_0014
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´
µ
µ
No. 2 Journal Oil Clearance
Standard (New): 0.060 0.120 mm
(0.0024 0.0047 in.)
Service Limit: 0.15 mm (0.006 in.)
8-20 Engine Lubrication
Oil Pump Overhaul (cont’d)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
K20Z2 engine:
8x1.25mm
27 N·m
(2.8 kgf·m, 20 lbf·ft)
K20Z3 engine:
8x1.25mm
28 N·m
(2.9 kgf·m, 21 lbf·ft)
16 °
7. Clean both balancer shaft No. 2 journals and the
bearing halves with a clean shop towel, then install
the balancer shafts into the lower balancer shaft
holder.
8. Place one strip of plastigage across each No. 2 journal.
9. Reinstall the bearings and the upper balancer shaft holder, then tighten the bolts.
NOTE: Do not rotate the balancer shafts during inspection.
 After torquing, tighten the three 8 mm bolts extra 16 ° (K20Z3 engine). 10. Remove the upper balancer shaft holder and the
bearings again, and measure the widest part with
the plastigage. If the balancer shaft No. 2 journal oil
clearance is out-of-tolerance, install new bearings,
and recheck. If it is still out-of-tolerance, replace the
balancer shafts.
11. Align the punch mark on the rear balancer shaft in the center of the two punch marks on the front
balancer shaft, then install the balancer shafts on
the lower balancer shaft holder.
08/08/21 14:36:49 61SNR030_080_0020
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9-5
A
A
B
C
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft) D
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
B
C A
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
6. Connect the water bypass hoses (A).
7. Connect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum hose (B).
8. Install the harness bracket mounting bolt (C) and the brake booster vacuum line bracket mounting
bolt (D).
9. Connect the engine wire harness connectors, and install the wire harness clamps to the intake
manifold.
 Manifold absolute pressure (MAP) sensor connector
 Throttle actuator connector 10. Install the intake air duct (A), then connect the
vacuum hose (B) and the breather pipe (C).
11. Install the engine cover.
12. After installation, check that all tubes, hoses and connectors are installed correctly.
13. Clean up any spilled engine coolant.
14. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
08/08/21 14:37:32 61SNR030_090_0005
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9-10Intake Manifold and Exhaust System
Intake Manifold Removal and Installation (cont’d)
A
B
C
B
C
A 6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft) B
C A
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
8. Connect the positive crankcase ventilation (PCV) hose (A), the evaporative emission (EVAP) canister
hose (B) and the brake booster vacuum hose (C).
9. Install the harness holder (A) to the bracket, then install the ground cable (B) and the harness clamp
bracket (C).
10. Connect the engine wire harness connectors, and install the wire harness clamps to the intake
manifold:
 Four fuel injector connectors
 Manifold absolute pressure (MAP) sensor connector
 Throttle actuator connector 11. Install the intake air duct (A), then connect the
vacuum hose (B) and breather pipe (C).
12. Install the engine cover.
13. Inspect for fuel leaks. Turn the ignition switch to ON (II) (do not operate the starter) so the fuel pump
runs for about 2 seconds and pressurizes the fuel
line. Repeat this operation three times, then check
for fuel leakage at any point in the fuel line.
14. Clean up any spilled engine coolant.
15. After installation, check that all tubes, hoses and connectors are installed correctly.
16. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
08/08/21 14:37:36 61SNR030_090_0010
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9-12Intake Manifold and Exhaust System
Exhaust Manifold Removal and Installation (cont’d)
EXHAUST MANIFOLD
COVER
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
10 x 1.25 mm
44 N·m
(4.5 kgf·m, 33 lbf·ft)
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft) GASKET
GASKET
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
10x1.25mm
44 N·m
(4.5 kgf·m, 33 lbf·ft)
SELF-LOCKING NUT
10 x 1.25 mm
44 N·m (4.5 kgf·m, 33 lbf·ft)
EXHAUST MANIFOLD BRACKETHEAT SHIELD
9. Remove the cover and the exhaust manifold bracket, then remove the exhaust manifold.
10. Install the exhaust manifold, and tighten the bolts and nuts in a crisscross pattern in three steps, beginning with the inner bolt.
11. Install the other parts in the reverse order of removal.
12. Inspect for leaks. Turn the ignition switch to ON (II) (do not operate the starter) so the fuel pump runs for about 2 seconds and pressurizes the fuel line. Repeat this operation three times, then check for fuel leakage at any point
in the fuel line.
13. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater valve open (see step 6 on page 10-8).
Tighten the bolts in steps,
alternating side-to-side.Replace.
Replace.
Replace.
08/08/21 14:37:38 61SNR030_090_0012
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Engine Cooling
Cooling System
Fan Controls
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Component Location Index
. 10-2
Radiator Cap Test . 10-4
Radiator Test . 10-4
Fan Motor Test . 10-5
Thermostat Test . 10-5
Water Pump Inspection . 10-6
Water Pump Replacement . 10-6
Coolant Check . 10-7
Coolant Replacement . 10-8
Thermostat Replacement . 10-10
Water Passage Replacement . 10-11
EGR Passage Removal and Installation . 10-13
Water Outlet Removal and Installation . 10-16
Radiator and Fan Replacement . 10-19
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Component Location Index
. 10-23
Symptom Troubleshooting Index . 10-24
Circuit Diagram . 10-25
Radiator Fan High Speed Circuit Troubleshooting . 10-26
08/08/21 14:39:50 61SNR030_100_0001
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