2006 ACURA CSX fuel

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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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9-11
Exhaust Manifold Removal and Installation
A B
A
B
1. Relieve the fuel pressure (see page 11-322).
2. Loosen the drain plug in the radiator, and drain the
engine coolant (see page 10-8).
3. Remove the under-cowl panel (see step 4 on page 20-164).
4. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
5. Remove the quick-connect fitting cover (A), then disconnect the fuel feed hose (B) (see page 11-329). 6. Disconnect the heater hoses.
7. Remove the rocker arm oil control valve (see page
11-296).
8. Remove the intermediate shaft heat shield (see step 3 on page 16-23).
(cont’d)
08/08/21 14:37:37 61SNR030_090_0011
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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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K20Z2 engine
9-13
Exhaust Pipe and Muffler Replacement
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft) 8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft)
HEAT SHIELD
GASKET MUFFLER
EXHAUST PIPE B
SELF-LOCKING NUTS
10x1.25mm
33N·m(3.4kgf·m,25lbf·ft) GASKET
GASKET THREE WAY CATALYTIC CONVERTER
(TWC) ASSEMBLY
SECONDARY HEATED
OXYGEN SENSOR
(SECONDARY HO2S)
44N·m(4.5kgf·m,33lbf·ft)
AIR FUEL RATIO (A/F) SENSOR
44 N·m (4.5 kgf·m, 33 lbf·ft) 8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
NOTE: Use new gaskets and self-locking nuts when reassembling.
Tighten the bolts in steps,
alternating side-to-side.
Replace.
Replace. Replace.
Replace. Tighten the bolts in steps,
alternating side-to-side.
08/08/21 14:37:38 61SNR030_090_0013
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K20Z3 engine
9-14Intake Manifold and Exhaust System
Exhaust Pipe and Muffler Replacement (cont’d)
8 x 1.25 mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft)
HEAT SHIELD
GASKET MUFFLER
EXHAUST PIPE B
SELF-LOCKING NUTS
10x1.25mm
33 N·m
(3.4 kgf·m, 25 lbf·ft)
GASKET
THREE WAY CATALYTIC CONVERTER
(TWC) ASSEMBLY
SECONDARY HEATED
OXYGEN SENSOR
(SECONDARY HO2S)
44 N·m (4.5 kgf·m, 33 lbf·ft)
AIR FUEL RATIO (A/F) SENSOR
44 N·m (4.5 kgf·m, 33 lbf·ft) GASKET
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
NOTE: Use new gaskets and self-locking nuts when reassembling.
Tighten the bolts in steps,
alternating side-to-side.
Tighten the bolts in steps,
alternating side-to-side.
Replace.
Replace.
Replace.
Replace.
08/08/21 14:37:39 61SNR030_090_0014
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Fuel and Emissions
Fuel and Emissions Systems
PGM-FI System
Electronic Throttle Control System
VTEC/VTC
Idle Control SystemFuel Supply System
Intake Air System
Catalytic Converter System
EGR System
PCV System
EVAP System..................................................
........
......................... ................
....................................... .......................
..................................................
........
......................... ................
....................................... .......................
Special Tools . 11-2
General Troubleshooting Information . 11-3
DTC Troubleshooting Index . 11-9
Symptom Troubleshooting Index . 11-13
System Description . 11-15
How to Set Readiness Codes . 11-69
..........................
.................................... ....................
......................... ........................
.................................... .............................. ....................
........................
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.............................................. .........................
............................ ........
..........................
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..........................................
.......................................... ..........................................................
.................................... ....................
......................... ........................
.................................... .............................. ....................
........................
.............................
.............................................. .........................
............................ ........
..........................
..........................
..........................................
.......................................... ................................
Component Location Index . 11-72
DTC Troubleshooting . 11-74
F-CAN Circuit Troubleshooting . 11-191
MIL Circuit Troubleshooting . 11-203
DLC Circuit Troubleshooting . 11-204
Injector Replacement . 11-219
A/F Sensor Replacement . 11-221
Secondary HO2S Replacement . 11-221
CMP Sensor B Replacement . 11-222
CKP Sensor Replacement . 11-222
Output Shaft (Countershaft) Speed Sensor
Replacement . 11-223
Knock Sensor Replacement . 11-223
MAP Sensor Replacement . 11-224
MAF Sensor/IAT Sensor Replacement . 11-224
ECT Sensor 1 Replacement . 11-225
ECT Sensor 2 Replacement . 11-225
ELD Replacement . 11-226
ECM/PCM Update . 11-227
ECM/PCM Replacement . 11-228
..........................
.................................... ......................
................................. ..........................
.................................... ......................
.................................
Component Location Index . 11-231
DTC Troubleshooting . 11-232
APP Sensor Signal Inspection . 11-268
Accelerator Pedal Module
Removal/Installation . 11-269
..........................
....................................
.................................................
.................................
................................. ..........................
....................................
.................................................
.................................
.................................
Component Location Index
. 11-273
DTC Troubleshooting . 11-274
VTC Oil Control Solenoid Valve Removal/Test/Installation . 11-294
CMP Sensor A Replacement . 11-295
Rocker Arm Oil Control Valve Removal/Installation . 11-296
Rocker Arm Oil Pressure Switch Removal/Installation . 11-296
..........................
.................................... .............
........................................
........................................ .................................... ...................
..........................
.................................... .............
........................................
........................................ .................................... ...................
Component Location Index
. 11-297
DTC Troubleshooting . 11-298
A/C Signal Circuit Troubleshooting . 11-306
Alternator FR Signal Circuit Troubleshooting . 11-307
Brake Pedal Position Switch Signal Circuit Troubleshooting . 11-308
Idle Speed Inspection . 11-309
ECM/PCM Idle Learn Procedure . 11-310 ..........................
.................................... .............
................................
......................................... ........................................ ......................................
.................................................
...................................................... .................................................. ....
........
................................
.............................................. .....................................................
................................. ..........................
.................................... .............
................................
......................................... ........................................ ......................................
.................................................
...................................................... .................................................. ....
........
................................
.............................................. .....................................................
.................................
Component Location Index
. 11-311
DTC Troubleshooting . 11-313
Fuel Pump Circuit Troubleshooting . 11-318
Fuel Pressure Relieving . 11-322
Fuel Pressure Test . 11-325
Fuel Tank Draining . 11-325
Fuel Line Inspection . 11-326
Fuel Line/Quick-Connect Fitting Precautions . 11-328
Fuel Line/Quick-Connect Fitting Removal . 11-329
Fuel Line/Quick-Connect Fitting Installation . 11-331
Fuel Tank Unit Removal and Installation . 11-334
Fuel Pressure Regulator Replacement . 11-337
Fuel Filter Replacement . 11-337
Fuel Pump/Fuel Gauge Sending Unit Replacement . 11-338
Fuel Tank Replacement . 11-339
Fuel Gauge Sending Unit Test . 11-340
Low Fuel Indicator Test . 11-341
..........................
......................................... .................................
.............................................................. .................
........................... .
............. ....
.............................................. ..........................
......................................... .................................
.............................................................. .................
........................... .
............. ....
..............................................
Component Location Index
. 11-342
Throttle Body Test . 11-343
Throttle Body Cleaning . 11-344
Intake Air Bypass Control Thermal Valve Test . 11-344
Air Cleaner Removal/Installation . 11-345
Air Cleaner Element Inspection/Replacement . 11-346
Intake Air Resonator Removal/Installation . 11-346
Throttle Body Removal/Installation . 11-348
Throttle Body Disassembly/Reassembly . 11-350
Intake Air Bypass Control Thermal Valve Replacement . 11-351
..........................
.................................... ...
..........................
.................................... ...
Component Location Index
. 11-352
DTC Troubleshooting . 11-353
Catalytic Converter Removal/Installation . 11-355
..........................
.................................... .........................................................
.................................... ...............................
Component Location Index
. 11-356
DTC Troubleshooting . 11-357
EGR Valve Replacement . 11-370
..........................
.................................... .........................................................
.................................... ...............................
Component Location Index
. 11-371
PCV Valve Inspection . 11-372
PCV Valve Replacement . 11-373
..........................
....................................
........................................ ........................
.............................
..............................................
.............................................. ..........................
....................................
........................................ ........................
.............................
..............................................
..............................................
Component Location Index
. 11-374
DTC Troubleshooting . 11-375
Fuel Cap Warning Message System Troubleshooting . 11-405
EVAP Canister Replacement . 11-407
FTP Sensor Replacement . 11-408
EVAP Canister Vent Shut Valve Replacement . 11-409
EVAP Canister Purge Valve Replacement . 11-409
08/08/21 14:12:30 61SNR030_110_0001
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DYNOMITE -2009-

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%)Ref. No. Tool Number Description Qty
11-2
Fuel and Emissions Systems
Special Tools
07AAA-SNAA100
Fuel Pump Module Locknut Wrench 1
07AAJ-S6MA150 Fuel Pressure Gauge Attachment Set 1
07JAZ-001000B Vacuum/Pressure Gauge, 0 4 in.Hg 1
07NAJ-P07010A Pressure Gauge Adapter 1
07ZAJ-S5AA200 Oil Pressure Hose 1
-1 07406-0020201 A/T Pressure Hose 1
-2 07406-0070301 A/T Low Pressure Gauge W/Panel 1
-3 07MAJ-PY4011A A/T Pressure Hose, 2,210 mm 1
-4 07MAJ-PY40120 A/T Pressure Adapter 1
07406-004000B Fuel Pressure Gauge 1
-1, -2, -3, -4
08/08/21 14:12:31 61SNR030_110_0002
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Intermittent Failures
Service Information
Opens and Shorts
How to Use the HDS (Honda Diagnostic
System)
If the MIL (malfunction indicator lamp) has come on If the MIL did not stay on
If you can’t duplicate the DTC
11-3
General Troubleshooting Information
A
A
The term intermittent failure means a system may have
had a failure, but it checks OK now. If the malfunction
indicator lamp (MIL) on the dash does not come on,
check for poor connections or loose terminals at all
connectors related to the circuit that you are
troubleshooting. If the MIL was on but then went out,
the original problem may have been intermittent.
Periodically, new ECM/PCM software or new service
procedures may become available. Always check
online for the latest software or service information
relatedtotheDTCsorsymptomsyouare
troubleshooting.
Open and short are common electrical terms. An open
is a break in a wire or at a connection. A short is an
accidental connection of a wire to ground or to another
wire. In simple electronics, this usually means
something won’t work at all. With complex electronics
(such as ECMs or PCMs) this can sometimes mean
something works, but not the way it’s supposed to.1. Start the engine, and check the MIL (A). NOTE: If the ignition switch is turned to ON (II), and
the engine is not started, the MIL stays on for
15 20 seconds (see page 11-69). 2. If the MIL stays on, connect the HDS to the data link
connector (DLC) (A) located under the driver’s side
of the dashboard.
3. Turn the ignition switch to ON (II).
4. Make sure the HDS communicates with the ECM/ PCM and other vehicle systems. If it doesn’t, go to
the DLC circuit troubleshooting (see page 11-204).
5. Check the diagnostic trouble code (DTC) and note it. Also check the freeze data and/or on-board
snapshot data, and download any data found. Then
refer to the indicated DTC’s troubleshooting, and
begin the appropriate troubleshooting procedure.
NOTE: Freeze data indicates the engine conditions when the first malfunction, misfire, or fuel trim
malfunction that activated the MIL was detected.
 The HDS can read the DTC, freeze data, on-board snapshot, current data, and other engine control
module (ECM) or powertrain control module
(PCM) data.
 For specific operations, refer to the user’s manual that came with the HDS.
6. If no DTCs are found, go to MIL troubleshooting (see page 11-203).
If the MIL did not stay on but there is a driveability
problem, do the symptom troubleshooting.
Some of the troubleshooting requires you to reset the
ECM/PCM and try to duplicate the DTC. If the problem is
intermittent and you can’t duplicate the code, do not
continue through the procedure. To do so will only
result in confusion and possibly, a needlessly replaced
ECM/PCM. (cont’d)
08/08/21 14:12:32 61SNR030_110_0003
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