ECU ACURA CSX 2006 Service User Guide



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5-295-29
Transmission Mount Replacement
12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft) A
22. Raise the vehicle on the lift.
23. M/T model: Tighten the front mount mounting bolt.
24. Install the splash shield (see step 40 on page 5-20).1. Loosen the upper torque rod mounting bolt (A).
2. Remove the air cleaner assembly (see page 11-345).
3. Remove the engine control module (ECM)/
powertrain control module (PCM) cover, then
remove the three bolts securing the ECM/PCM (see
step 10 on page 5-4).
4. Remove the under hood fuse/relay box from the ECM/PCM bracket, then remove the ECM/PCM
bracket(seestep13onpage5-4).
(cont’d)
08/08/21 14:21:04 61SNR030_050_0029
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5-295-29
Transmission Mount Replacement
12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft) A
22. Raise the vehicle on the lift.
23. M/T model: Tighten the front mount mounting bolt.
24. Install the splash shield (see step 40 on page 5-20).1. Loosen the upper torque rod mounting bolt (A).
2. Remove the air cleaner assembly (see page 11-345).
3. Remove the engine control module (ECM)/
powertrain control module (PCM) cover, then
remove the three bolts securing the ECM/PCM (see
step 10 on page 5-4).
4. Remove the under hood fuse/relay box from the ECM/PCM bracket, then remove the ECM/PCM
bracket(seestep13onpage5-4).
(cont’d)
08/08/21 14:21:04 61SNR030_050_0029
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6-20Cylinder Head
Cam Chain Removal (cont’d)
A
BC
A
B
16. Align the holes on the lock (A) and the auto- tensioner (B), then insert a 1.2 mm (0.05 in.)
diameter pin or lock pin (P/N 14511-PNA-003) (C)
into the holes. Turn the crankshaft clockwise to
secure the pin.
NOTE: Check the auto-tensioner cam position. If the
position is not aligned, set the first cam to the first
edge of the rack (see step 8 on page 6-22).
17. Remove the auto-tensioner, then remove the crankshaft pulley. 18. Remove cam chain guide B.
19. Remove cam chain guide A and the tensioner
arm (B).
20. Remove the cam chain.
08/08/21 14:26:35 61SNR030_060_0020
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Removal
6-29
Auto-tensioner Removal and Installation
C
B
A
1. Remove the chain case cover.
2. Turn the crankshaft counterclockwise to compress
the auto-tensioner. 3. Align the holes on the lock (A) and the auto-
tensioner (B), then insert a 1.2 mm (0.05 in.)
diameter pin or lock pin (P/N 14511-PNA-003) (C)
into the holes. Turn the crankshaft clockwise to
secure the pin.
NOTE: Check the auto-tensioner cam position. If the
position is not aligned, set the first cam to the first
edge of the rack (see step 8 on page 6-22).
4. Remove the auto-tensioner.
(cont’d)
08/08/21 14:27:22 61SNR030_060_0029
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6-36 Cylinder Head
Cylinder Head Cover Removal
B
A
C
1. Remove the engine cover.
2. Remove the four ignition coils (see page 4-21).
3. Disconnect the evaporative emission (EVAP)
canister purge valve connector.
4. Remove the dipstick (A), and disconnect the breather hose (B).
5. Remove two bolts (C) securing the evaporative emission (EVAP) canister purge valve bracket. 6. Remove the cylinder head cover.
08/08/21 14:27:25 61SNR030_060_0036
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6-386-38 Cylinder Head
Cylinder Head Cover Installation
(cont’d)
Cylinder Head Removal
B
C
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft) A
B
8. Install two bolts (A) securing the evaporativeemission (EVAP) canister purge valve bracket.
9. Connect the breather hose (B), and install the dipstick (C).
10. Connect the evaporative emission (EVAP) canister purge valve connector.
11. Install the four ignition coils (see page 4-21).
12. Install the engine cover. NOTE:
 Use fender covers to avoid damaging the painted surfaces.
 To avoid damaging the wire and terminals, unplug the wiring connectors carefully while holding the
connector portion.
 Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1. To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
38 °C (100 °F) before loosening the cylinder head
bolts.
 Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
1. Relieve the fuel pressure (see page 11-322).
2. Drain the engine coolant (see page 10-8).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the drive belt (see page 4-31).
5. Remove the intake manifold:  K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the exhaust manifold (see page 9-11).
7. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
08/08/21 14:27:27 61SNR030_060_0038
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6-386-38 Cylinder Head
Cylinder Head Cover Installation
(cont’d)
Cylinder Head Removal
B
C
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft) A
B
8. Install two bolts (A) securing the evaporativeemission (EVAP) canister purge valve bracket.
9. Connect the breather hose (B), and install the dipstick (C).
10. Connect the evaporative emission (EVAP) canister purge valve connector.
11. Install the four ignition coils (see page 4-21).
12. Install the engine cover. NOTE:
 Use fender covers to avoid damaging the painted surfaces.
 To avoid damaging the wire and terminals, unplug the wiring connectors carefully while holding the
connector portion.
 Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1. To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
38 °C (100 °F) before loosening the cylinder head
bolts.
 Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
1. Relieve the fuel pressure (see page 11-322).
2. Drain the engine coolant (see page 10-8).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the drive belt (see page 4-31).
5. Remove the intake manifold:  K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the exhaust manifold (see page 9-11).
7. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
08/08/21 14:27:27 61SNR030_060_0038
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6-40Cylinder Head
Cylinder Head Removal (cont’d)
B
A
12. Remove the bolt (A) securing the connecting pipe.
13. Disconnect the water bypass hose (B).
14. Disconnect the following engine wire harnessconnectors, and remove the wire harness clamps
from the cylinder head.
 Four fuel injector connectors
 Engine coolant temperature (ECT) sensor 1 connector
 Camshaft position (CMP) sensor A (Intake) connector
 Camshaft position (CMP) sensor B (Exhaust) connector
 Rocker arm oil control valve connector
 Rocker arm oil pressure switch connector
 EVAP canister purge valve connector
 Variable valve timing control (VTC) oil control solenoid valve connector
 Exhaust gas recirculation (EGR) valve connector (K20Z2 engine)
 Engine oil pressure switch connector 15. Remove the cam chain (see page 6-18).
16. Remove the rocker arm assembly:
 K20Z2 engine (see page 6-43)
 K20Z3 engine (see page 6-44)
17. Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence 1/3 turn at a
time. Repeat the sequence until all bolts are
loosened.
18. Remove the cylinder head.
08/08/21 14:27:28 61SNR030_060_0040
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6-64Cylinder Head
Cylinder Head Installation (cont’d)
B
A
8 x 1.25 mm
22 N·m (2.2 kgf·m, 16 lbf·ft) A
B
A
B
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
12. Install the rocker arm assembly:
 K20Z2 engine (see page 6-60)
 K20Z3 engine (see page 6-61)
13. Install the cam chain (see page 6-21).
14. Connect the following engine wire harness connectors, and install the wire harness clamps to
the cylinder head:
 Four fuel injector connectors
 Engine coolant temperature (ECT) sensor 1 connector
 Camshaft position (CMP) sensor A (Intake) connector
 Camshaft position (CMP) sensor B (Exhaust) connector
 Rocker arm oil control valve connector
 Rocker arm oil pressure switch connector
 EVAP canister purge valve connector
 Variable valve timing control (VTC) oil control solenoid valve connector
 Exhaust gas recirculation (EGR) valve connector (K20Z2 engine)
 Engine oil pressure switch connector
15. Install the bolt (A) securing the connecting pipe.
16. Connect the water bypass hose (B). 17. Connect the upper radiator hose (A) and the heater
hoses (B).
18. Install the harness holder bracket (A), then install the harness holder (B).
08/08/21 14:28:43 61SNR030_060_0064
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7-11
Oil Pan Removal
1. If the engine is already out of the vehicle, go to step 18.
2. Raise the vehicle on the lift.
3. Drain the engine oil (see page 8-10).
4. Remove the front wheels.
5. Remove the splash shield (see step 25 on page 5-5).
6. Separate the stabilizer links (see page 18-25).
7. Separate the knuckles from the lower arms (see step 6 on page 18-21).
8. Remove the steering gearbox bracket. Remove the steering gearbox mounting bolt, the stiffener
mounting bolt, and the stiffener (see step 36 on
page 5-6).
9. Remove the steering gearbox mounting bolt, the stiffener mounting bolt, and the stiffener. Remove
the harness clamp from the front subframe (see
step 38 on page 5-6).
10. A/T model: Remove the bolt securing the automatic transmission fluid (ATF) filter.
11. Install the front leg assembly, the hook, and the wing nut to an A and Reds engine support hanger
(AAR-T1256) onto the 2006 Civic engine hanger
(VSB02C000025). Carefully position the engine
hanger on the vehicle, and attach the hook to the
slotted hole in the support eyelet. Tighten the wing
nut by hand to lift and support the engine/
transmission (see step 47 on page 5-8). 12. Remove the lower torque rod (see step 49 on page
5-8).
13. M/T model: Remove the front mount mounting bolt (see step 50 on page 5-9).
14. Make the appropriate reference line at both sides of the front subframe that line up with the edges on
the body (see step 51 on page 5-9).
15. Loosen the mid-stiffener mounting bolts on both sides(seestep52onpage5-9).
16. Attach the front subframe adapter (VSB02C000016) to the front subframe, and hang the belt of the front
subframe adapter over the front of the subframe.
Secure the belt with its stop, then tighten the wing
nut (see step 53 on page 5-9).
17. Remove the front subframe (see step 55 on page 5-10).
18. Remove the lower torque rod bracket.
(cont’d)
08/08/21 14:32:34 61SNR030_070_0011
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