Page 86 of 788
Page 97 of 788

IGNITION SYSTEM
ENGINE ELECTRICAL16-33
SPARK PLUG CHECK AND CLEANING
<4G6>
M1163004300353
CAUTION
When pulling off the spark plug cable from the
plug always hold the cable cap, not the cable.
1. Remove the spark plug cables.
2. Remove the spark plugs.
CAUTION
•Do not attempt to adjust the gap of the iridium
plug.
•Always use a plug cleaner and finish cleaning
within 20 seconds. Do not use wire brushes.
Otherwise, the iridium and platinum tip may
be damaged.
3. Check the plug gap and replace if the limit is
exceeded.
Standard value: 1.0 − 1.1 mm
Limit: 1.3 mm
CAUTION
Be careful not to allow foreign matter in
cylinders.
4. Clean the engine plug holes.
5. Install the spark plugs.
CAMSHAFT POSITION SENSOR CHECKM1163004400219
Check the camshaft position sensor circuit if
self-diagnosis code No. P0340 is shown.
(Refer to GROUP 13A − Troubleshooting −
Inspection chart for diagnosis code <4G1> P.13A-15
or GROUP 13B − Troubleshooting − Inspection chart
for diagnosis code <4G6> P.13B-15 ).
CRANK ANGLE SENSOR CHECKM1163004500272
Check the crank angle sensor circuit if self-diagnosis
code No. P0335 is shown.
(Refer to GROUP 13A − Troubleshooting −
Inspection chart for diagnosis code <4G1> P.13A-15
or GROUP 13B − Troubleshooting − Inspection chart
for diagnosis code <4G6> P.13B-15 ).
DETONATION SENSOR CHECKM1163002900047
Check the detonation sensor circuit if self-diagnosis
code No. P0325 is shown.
(Refer to GROUP 13A − Troubleshooting −
Inspection chart for diagnosis code <4G1> P.13A-15
or GROUP 13B − Troubleshooting − Inspection chart
for diagnosis code <4G6> P.13B-15).
IGNITION SECONDARY VOLTAGE
WAVEFORM CHECK USING AN
OSCILLOSCOPE
M1163001700170
MEASUREMENT METHOD
1. Clamp the secondary pickup around the spark
plug cable.
NOTE: .
•The peak ignition voltage will be reversed
when the spark plug cables No. 2 and No. 4,
or No. 1 and No. 3 cylinders are clamped.
•Because of the two-cylinder simultaneous
ignition system, the waveforms for two
cylinders in each group appear during
waveform observation (No. 1 cylinder - No. 4
cylinder, No. 2 cylinder - No. 3 cylinder).
However, waveform observation is only
applicable for the cylinder with the spark plug
cable clamped by the secondary pickup.
•Identifying which cylinder waveform is
displayed can be difficult. For reference,
remember that the waveform of the cylinder
attached to the secondary pickup will be
displayed as stable.
2. Clamp the spark plug cable with the trigger
pickup.
NOTE: Clamp the trigger pickup to the same
spark plug cable clamped by the secondary
pickup.
AKX00383
AL
Platinum
tipIridium
tip
Page 105 of 788
IGNITION SYSTEM
ENGINE ELECTRICAL16-41
CRANKSHAFT POSITION SENSOR
REMOVAL AND INSTALLATION <4G1>
M1163003500439
Pre-removal and Post-installation Operation
•Valve Timing Belt Removal and Installation (Refer to
GROUP 11A P.11A-33).
AC208380AB
12
11 ± 1 N·m
8.8 ± 1.0 N·m
Removal steps
1. Engine crank angle sensor
2. Crank angle sensor connector
bracket
Page 106 of 788
Page 109 of 788

17-1
GROUP 17
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL . . . . . . . . . .
17-2
GENERAL INFORMATION . . . . . .
17-2
SERVICE SPECIFICATIONS. . . . .17-2
ON-VEHICLE SERVICE. . . . . . . . .17-2
ACCEL CABLE CHECK AND
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 17-2
ACCELERATOR CABLE AND
PEDAL . . . . . . . . . . . . . . . . . . . . . .
17-3
REMOVAL AND INSTALLATION . . . . . 17-3
EMISSION CONTROL MPI . . . .17-5
GENERAL INFORMATION . . . . . .
17-5
EMISSION CONTROL DEVICE
REFERENCE TABLE . . . . . . . . . .
17-5
SERVICE SPECIFICATION(S) . . .17-5
VACUUM HOSE. . . . . . . . . . . . . . .17-6
VACUUM HOSE PIPING DIAGRAM . . . 17-6
VACUUM CIRCUIT DIAGRAM . . . . . . . 17-7
VACUUM HOSE CHECK. . . . . . . . . . . . 17-8
VACUUM HOSE INSTALLATION . . . . . 17-8
CRANKCASE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .
17-8
GENERAL INFORMATION (CRANKCASE
EMISSION CONTROL SYSTEM) . . . . . 17-8COMPONENT LOCATION (CRANKCASE
EMISSION CONTROL SYSTEM) . . . . . 17-9
POSITIVE CRANKCASE VENTILATION
SYSTEM CHECK . . . . . . . . . . . . . . . . . . 17-9
POSITIVE CRANKCASE VENTILATION
(PCV) VALVE CHECK . . . . . . . . . . . . . . 17-9
EVAPORATIVE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .
17-9
GENERAL INFORMATION (EVAPORATIVE
EMISSION CONTROL SYSTEM) . . . . . 17-9
COMPONENT LOCATION (EVAPORATIVE
EMISSION CONTROL SYSTEM) . . . . . 17-10
PURGE CONTROL SYSTEM CHECK . . 17-10
PURGE PORT VACUUM CHECK . . . . . 17-11
PURGE CONTROL SOLENOID VALVE
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 17-11
FUEL VAPOUR CANISTER REMOVAL
AND INSTALLATION . . . . . . . . . . . . . . . 17-12
EXHAUST GAS RECIRCULATION
(EGR) SYSTEM . . . . . . . . . . . . . . .
17-13
GENERAL INFORMATION
(EGR SYSTEM) . . . . . . . . . . . . . . . . . . . 17-13
COMPONENT LOCATION
(EGR SYSTEM) . . . . . . . . . . . . . . . . . . . 17-14
EGR SYSTEM CHECK . . . . . . . . . . . . . 17-15
EGR VALVE CHECK . . . . . . . . . . . . . . . 17-15
EGR PORT VACUUM CHECK <4G1>. . 17-16
EGR CONTROL SOLENOID VALVE
CHECK <4G1> . . . . . . . . . . . . . . . . . . . . 17-16
EGR CONTROL SOLENOID VALVE
CHECK <4G6> . . . . . . . . . . . . . . . . . . . . 17-17
EXHAUST GAS RECIRCULATION (EGR)
VALVE REMOVAL AND
INSTALLATION . . . . . . . . . . . . . . . . . . . 17-18
CATALYTIC CONVERTER . . . . . .17-18
REMOVAL AND INSTALLATION . . . . . . 17-18
Page 120 of 788
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-12
4. Check airtightness by applying a vacuum with
voltage applied directly from the battery to the
purge control solenoid valve and without applying
voltage.
5. Measure the resistance between the terminals of
the solenoid valve.
Standard value: 30 − 34 Ω (at 20°C)
FUEL VAPOUR CANISTER REMOVAL
AND INSTALLATION
M1173004200153
Battery voltage Normal condition
Applied Vacuum leaks
Not applied Vacuum maintained
Pre-removal and Post-installation Operation
Air Cleaner Assembly Removal and Installation (Refer to
GROUP 15 P.15-3).
AC208253
1 2 3
4
56
78
AD
Removal steps
1. Emission vacuum hose connection
2. Fuel vapour control line hose
3. Fuel vapour control check valve
4. Fuel vapour control line hose5. Fuel vapour control line clamp
6. Fuel vapour canister
7. Fuel high-pressure hose clamp
8. Fuel vapour canister bracketRemoval steps (Continued)
Page 126 of 788
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-18
EXHAUST GAS RECIRCULATION (EGR)
VALVE REMOVAL AND INSTALLATION
M1173010500175
CATALYTIC CONVERTER
REMOVAL AND INSTALLATIONM1173003900386
Refer to GROUP 15 - Exhaust Pipe and Main Muffler P.15-11.
Pre-removal and Post-installation Operation
Air Cleaner Assembly Removal and Installation (Refer to
GROUP 15 P.15-3).
AC208130
21 ± 4 N·m
2 13
N
AC
<4G1>
AC301219
19 ± 3 N·m2 1
3
N
AC
<4G6>
Removal steps
1. Emission vacuum hose connection2. EGR valve
3. EGR valve gasketRemoval steps (Continued)
Page 127 of 788
21-1
GROUP 21
CLUTCH
CONTENTS
CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21A
CLUTCH OVERHAUL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21B