2006 ACURA CSX steering






5-6Engine Assembly
Engine Removal (cont’d)
C
B
D
A B
C
A
D
D A
B
C
27. Drain the engine oil (see page 8-10).
28. Drain the transmission fluid: Manual transmission (see step 3 on page 13-5)
 Automatic transmission (see step 3 on page14-232)
29. Disconnect the air fuel ratio (A/F) sensor connector (A).
30. Remove the grommet (B), then disconnect the secondary heated oxygen sensor (secondary
HO2S) connector (C).
31. Remove the three way catalytic converter (TWC) (D).
32. A/T model: Remove the shift cable. Do not bend the cables excessively (see step 39 on page 14-239).
33. Separate the stabilizer links (see page 18-25).
34. Separate the knuckles from the lower arms (see step 6 on page 18-21).
35. Remove the driveshafts (see page 16-4). Coat all precision-finished surfaces with new engine oil. Tie
plastic bags over the driveshaft ends. 36. Remove the steering gearbox bracket (A).
37. Remove the steering gearbox mounting bolt (B),
the stiffener mounting bolt (C), and the stiffener (D).
38. Remove the steering gearbox mounting bolt (A), the stiffener mounting bolt (B), and the stiffener (C).
39. Remove the harness clamp (D) from the subframe.
08/08/21 14:20:24 61SNR030_050_0006
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DYNOMITE -2009-


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5-20Engine Assembly
Engine Installation (cont’d)
D
A
B
10x1.25mm
59 N·m
(6.0 kgf·m, 43 lbf·ft)
C
10x1.25mm
54 N·m
(5.5 kgf·m, 40 lbf·ft)
A
B
C
10x1.25mm
59 N·m
(6.0 kgf·m, 43 lbf·ft)
D
10x1.25mm
54 N·m
(5.5 kgf·m, 40 lbf·ft)
10x1.25mm
38 N·m
(3.9 kgf·m, 28 lbf·ft)
E
F
A
D
B
B
C
10x1.25mm
33 N·m (3.4 kgf·m, 25 lbf·ft)
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft)
29. Install the stiffener (A), then tighten the steering gearbox mounting bolt (B) and the stiffener
mounting bolt (C).
30. Install the harness clamp (D) to the subframe.
31. Install the steering gearbox bracket (A).
32. Install the stiffener (B), then tighten the steering gearbox mounting bolt (C) and the stiffener
mounting bolt (D).
33. A/T model: Install the shift cable (see step 19 on page 14-245).
34. Install a new set ring on the end of each driveshaft, then install the driveshafts (see page 16-20). Make
sure each ring ‘‘clicks’’ into place in the differential
and the intermediate shaft. 35. Connect the lower arms to the knuckles (see step 9
on page 18-16).
36. Connect the stab ilizer links (see page 18-25).
37. Install the three way catalytic converter (TWC) (A). Use the new gaskets (B) and the new self-locking
nuts (C).
38. Connect the air fuel ratio (A/F) sensor connector (D).
39. Connect the secondary heated oxygen sensor (secondary HO2S) connector (E), then install the
grommet (F).
40. Install the splash shield.
Replace.
Replace.
Replace.
08/08/21 14:20:34 61SNR030_050_0020
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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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DYNOMITE -2009-


7-31
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
19. Raise the vehicle on the lift.
20. Install the lower torque rod, then tighten the newlower torque rod mounting bolts in the numbered
sequence shown (see step 21 on page 5-18).
21. M/T model: Loosely tighten the new front mount mounting bolt (see step 22 on page 5-19).
22. Lower the vehicle on the lift.
23. Remove the engine support hanger and engine hanger adapter.
24. Tighten the upper torque rod mounting bolt (see step 25 on page 5-19).
25. Raise the vehicle on the lift.
26. M/T model: Tighten the front mount mounting bolt (see step 27 on page 5-19).
27. A/T model: Install the bolt securing the automatic transmission fluid (ATF) filter. 28. Install the stiffener, then tighten the steering
gearbox mounting bolt and the stiffener mounting
bolt. Install the harness clamp to the front subframe
(see step 29 on page 5-20).
29. Install the steering gearbox bracket. Install the stiffener, then tighten the steering gearbox
mounting bolt and the stiffener mounting bolt (see
step 32 on page 5-20).
30. Connect the lower arms to the knuckles (see step 9 on page 18-16).
31. Connect the stab ilizer links (see page 18-25).
32. Install the splash shield (see step 40 on page 5-20).
33. Install the front wheels.
34. Refill the engine with engine oil (see step 4 on page 8-10).
08/08/21 14:33:12 61SNR030_070_0031
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DYNOMITE -2009-

Ó
•••
•••
••• ´
••• µ Ó
Ó
Ó
Ó
•••
•••
•••
•••
••• Ó
•••
•••
•••
•••
•••
DTC
(MIL indication ) Two Drive Cycle
Detection Detection Item MIL Note
11-12Fuel and Emissions Systems
DTC Troubleshooting Index (cont’d)
P2227 (13)
Barometric Pressure (BARO) Sensor Circuit Range/Performance
Problem ON (see page 11-176)
P2228 (13) Barometric Pressure (BARO) Sensor Circuit Low Voltage ON (see page 11-177)
P2229 (13) Barometric Pressure (BARO) Sensor Circuit High Voltage ON (see page 11-177)
P2238 (48) Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit Low Voltage ON (see page 11-178)
P2252 (48) Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit Low Voltage ON (see page 11-179)
P2270 (63) Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2))
Circuit Signal Stuck Lean ON (see page 11-181)
P2271 (63) Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2))
Circuit Signal Stuck Rich ON (see page 11-181)
P2413 (12) Exhaust Gas Recirculation (EGR) System Malfunction ON (see page 11-363)
P2422 (117) Evaporative Emission (EVAP) Canister Vent Shut Valve Stuck Closed
Malfunction ON (see page 11-402)
P2610 (132) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Ignition Off Internal Timer Malfunction ON (see page 11-182)
P2646 (22) Rocker Arm Oil Pressure Switch Circuit Low Voltage ON (see page 11-284)
P2647 (22) Rocker Arm Oil Pressure Switch Circuit High Voltage ON (see page 11-287)
P2648 (21) Rocker Arm Oil Control Solenoid Circuit Low Voltage ON (see page 11-289)
P2649 (21) Rocker Arm Oil Control Solenoid Circuit High Voltage ON (see page 11-291)
P2A00 (61) Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Range/Performance
Problem ON (see page 11-182)
U0028 (126) F-CAN Malfunction (BUS-OFF (Engine Control Module (ECM)/
Powertrain Control Module (PCM))) ON (see page 11-183)
U0122 (126) F-CAN Malfunction (Engine Control Module (ECM)/Powertrain
Control Module (PCM)-Vehicle Stability Assist (VSA) Modulator-
Control Unit) OFF (see page 11-184)
U0131 (126) F-CAN Malfunction (Engine Control Module (ECM)/Powertrain
Control Module (PCM)-Electrical Power Steering (EPS) Control Unit) OFF (see page 11-186)
U0155 (126) F-CAN Malfunction (Engine Control Module (ECM)/Powertrain
Control Module (PCM)-Gauge Control Module) ON (see page 11-188)
U0300 (131) PGM-FI System and A/T System Program Version Mismatch ON (see page 11-190)
NOTE:  The above DTCs are indicated when the PGM-FI system is selected with the HDS.
 Some automatic transmission DTCs cause the MIL to come on. If the MIL is on and no DTCs are indicated in the PGM-FI system, select the A/T system, and check for automatic transmission DTCs.
: These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS.
1: A/T
4: K20Z2 engine
6: with VSA
4
6
1
08/08/21 14:12:36 61SNR030_110_0012
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Throttle Body
Brake Pedal Position Switch
Electrical Power Steering (EPS) Signal
Fuel Cutoff Control
Fuel Pump Control
PGM-FI Main Relay 1 and 2
Idle Control System
Fuel Supply System
11-36Fuel and Emissions Systems
System Description (cont’d)
THROTTLE VALVE
THROTTLE POSITION
(TP) SENSOR and
THROTTLE ACTUATOR
The throttle body is a single-barrel side draft type. The
lower portion of the throttle valve is heated by engine
coolant from the cylinder head to prevent icing of the
throttle plate. When the engine is cold, the A/C compressor is on, the
transmission is in gear, the brake pedal is pressed, the
power steering load is high, or the alternator is
charging, the ECM/PCM sends signal to the throttle
position to maintain the correct idle speed.
The brake pedal position switch signals the ECM/PCM
when the brake pedal is pressed.
The EPS signals the ECM/PCM when the power steering
load is high.
During deceleration with the throttle valve closed,
current to the injectors is cut off to improve fuel
economy at engine speeds over 1,000 rpm. Fuel cutoff
control also occurs when the engine speed exceeds
6,900 rpm (K20Z3: 8,200 rpm), regardless of the
position of the throttle valve, to protect the engine from
over-revving. When the vehicle is st
opped, the ECM/
PCM cuts the fuel at engine speeds over 5,000 rpm
(K20Z3: 7,700 rpm). On a cold engine, fuel cut occurs at
a lower engine speed.
When the ignition switch is turned to ON (II), the ECM/
PCM grounds PGM-FI main relay 2 (FUEL PUMP) which
feeds current to the fuel pump for 2 seconds to
pressurize the fuel system. With the engine running, the
ECM/PCM grounds PGM-FI main relay 2 (FUEL PUMP)
and feeds current to the fuel pump. When the engine is
not running and the ignition is turned to ON (II), the
ECM/PCM cuts ground to PGM-FI main relay 2 (FUEL
PUMP) which cuts current to the fuel pump.
PGM-FI main relay 1 is energized whenever the ignition
switch is ON (II), to supply battery voltage to the ECM/
PCM, power to the injectors, and power for PGM-FI
main relay 2 (FUEL PUMP). PGM-FI main relay 2 (FUEL
PUMP) is energized to supply power to the fuel pump
for 2 seconds when the ignition switch is turned to
ON (II), and when the engine is cranking or running.
08/08/21 14:13:39 61SNR030_110_0036
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DYNOMITE -2009-

µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO YES
NO
YES
NO
11-139
24. Compare the value of ECT SENSOR 1 and the
ambient temperature, and the value of ECT
SENSOR 2 and the ambient temperature
individually.
Replace the sensor that differed more than
3 °C (5.4 °F) from the ambient temperature, then go
to step 25.
Check and repair any problems with the
following items. Repair or replace them if needed,
then go to step 25. If every item is OK, go to step
32.
 Engine compression and cylinder leakdown
 VTEC system
 Engine oil
 A/C system
 Power steering
25. Turn the ignition switch to ON (II).
26. Reset the ECM/PCM with the HDS.
27. Do the ECM/PCM idle learn procedure (see page 11-310).
28. Let the engine cool until the value of ECT SENSOR 1 is 50 °C (122 °F) or less.
29. Start the engine, and let it idle for 10 seconds or more.
30. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the CKP sensor, the throttle body, the
MAF sensor/IAT sensor, ECT sensor 1, ECT sensor
2, and the ECM/PCM, then go to step 1.
Go to step 31. 31. Monitor the OBD STATUS for DTC P050B in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 30,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the CKP sensor,
the throttle body, the MAF sensor/IAT sensor, ECT
sensor 1, ECT sensor 2, and the ECM/PCM, then go
to step 1. If the screen indicates EXECUTING, keep
idling until a result comes on. If the screen
indicates OUT OF CONDITION, go to step 28.
32. Update the ECM/PCM if it does not have the latest software (see page 11-227), or substitute a known-
good ECM/PCM (see page 11-7).
33. Let the engine cool until the value of ECT SENSOR 1 is 50 °C (122 °F) or less.
34. Start the engine, and let it idle for 10 seconds or more.
35. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the CKP sensor, the throttle body, the
MAF/IAT sensor, ECT sensor 1, ECT sensor 2, and
the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 33. If the ECM/PCM was substituted,
go to step 1.
Go to step 36.
(cont’d)
Does ei t her sensor d i f f er mor e t han 3 ° C ( 5 .4 ° F )f r om t he ambi ent t emper at ur e?
Is DT C P050B ind icated ? Does t he scr een i nd i cat e PASSE D?
Is DT C P050B ind icated ?
08/08/21 14:18:56 61SNR030_110_0139
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DYNOMITE -2009-




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13-11
A B
C
A
B A
B
A
21. Remove the stiffener plate (A) from the left side ofthe steering gearbox, and the mounting bracket (B)
from the right side of the steering gearbox.
Disconnect the exhaust mounting rubber (C).
22. Remove the stiffener plate (A) and the harness clip (B). 23. Remove the front engine mount mounting bolt (A)
and nut (B), then remove the lower radiator hose
from the front engine mount bracket.
24. Remove the front engine mount (A) from the transmission and the engine.
(cont’d)
08/08/21 14:44:22 61SNR030_130_0013
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DYNOMITE -2009-