2006 SUZUKI SX4 torque

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-7
Engine Coolant Temperature (ECT) Sensor
Removal and Installation
S6RW0D1306008
Removal
1) Disconnect negative cable at battery.
2) Drain coolant referring to “Cooling System Draining
in Section 1F”.
WARNING!
To avoid danger of being burned, do not
remove radiator cap while engine and
radiator are still hot.
Scalding fluid and steam can be blown out
under pressure if cap is taken off too soon.

3) Remove air intake pipe.
4) Disconnect connector from ECT sensor (1).
5) Remove ECT sensor from water outlet.
Installation
Reverse removal procedure noting the following.
• Clean mating surfaces of ECT sensor and water
outlet.
• Check O-ring for damage and replace, if necessary.
• Tighten ECT sensor (1) to specified torque.
Tightening torque
ECT sensor (a): 15 N·m (1.5 kgf-m, 11.0 lb-ft)
• Connect connector to ECT sensor securely.
• Refill coolant referring to “Cooling System Flush and
Refill in Section 1F”.
Engine Coolant Temperature (ECT) Sensor
Inspection
S6RW0D1306009
Immerse temperature sensing part of ECT sensor (1) in
water (or ice) and measure resistance between sensor
terminals while heating water gradually.
If measured resistance doesn’t show such characteristic
as shown, replace ECT sensor.
1
I2RH0B130008-01
1,(a)
I2RH0B130009-01
I5RW0A130007-01

Downloaded from www.Manualslib.com manuals search engine 1C-8 Engine Electrical Devices:
Heated Oxygen Sensor (HO2S-1 and HO2S-2)
Heater On-Vehicle Inspection (If Equipped)
S6RW0D1306010
1) Disconnect sensor connector.
2) Using ohmmeter, measure resistance between
terminals “V
B” and “GND” of sensor connector.
If found faulty, replace oxygen sensor.
NOTE
Temperature of sensor affects resistance
value largely. Make sure that sensor heater is
at correct temperature.

Resistance of oxygen sensor heater
HO2S-1: 5.0 – 6.4 Ω at 20 °C (68 °F)
HO2S-2: 11.7 – 14.5 Ω at 20 °C (68 °F)
Viewed from terminal side
3) Connect sensor connector securely.
Heated Oxygen Sensor (HO2S-1 and HO2S-2)
Removal and Installation (If Equipped)
S6RW0D1306011
Removal
WARNING!
To avoid danger of being burned, do not
touch exhaust system when system is hot.
Oxygen sensor removal should be performed
when system is cool.

1) Disconnect negative cable at battery.
2) Disconnect connector of heated oxygen sensor and
release its wire harness from clamps.
3) Perform following items before removing heated
oxygen sensor.
a) For HO2S-1, remove exhaust manifold referring
to “Exhaust Manifold Removal and Installation in
Section 1K”, if necessary.
b) For HO2S-2, hoist vehicle.
4) Remove heated oxygen sensor from exhaust pipe or
exhaust manifold.Installation
Reverse removal procedure noting the following.
• Tighten heated oxygen sensor (1) to specified torque.
Tightening torque
Heated oxygen sensor (a): 45 N·m (4.5 kgf-m,
32.5 lb-ft)
• Install exhaust manifold referring to “Exhaust Manifold
Removal and Installation in Section 1K”, if removed.
• Connect connector of heated oxygen sensor (1) and
clamp wire harness securely.
• After installing heated oxygen sensor, start engine
and check that no exhaust gas leakage exists.
[A]: HO2S-1 [B]: HO2S-2
I4RS0A130006-01
[A]: HO2S-1 [B]: HO2S-2
[A]
[B]
1, (a)
1, (a)
I3RM0A130007-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-9
Camshaft Position (CMP) Sensor Removal and
Installation
S6RW0D1306012
Removal
1) Disconnect negative cable at battery.
2) Disconnect connector from CMP sensor.
3) Remove camshaft position sensor from timing chain
cover (non-VVT model) or cylinder head (VVT
model).
Installation
1) Install camshaft position sensor to timing chain cover
(non-VVT model) or cylinder head (VVT model).
Tightening torque
CMP sensor bolt (non-VVT model) (a): 10 N·m (
1.0 kgf-m, 7.5 lb-ft)
CMP sensor bolt (VVT model) (b): 11 N·m (1.1
kgf-m, 8.0 lb-ft)
2) Connect connector to CMP sensor securely.
3) Connect negative cable to battery.
Camshaft Position (CMP) Sensor InspectionS6RW0D1306013
Visual check
• Check that O-ring is free from damage.
• Check that end face of sensor and signal rotor tooth
are free from any metal particles and damage.
[A]: Non-VVT model [B]: VVT model
I6RW0D130002-02
I4RS0B130015-01

Downloaded from www.Manualslib.com manuals search engine 1C-10 Engine Electrical Devices:
Performance check
1) Remove metal particles on end face of CMP sensor,
if any.
2) Arrange 12 V battery (1) and connect its positive
terminal to “Vin” terminal (2) and negative terminal to
“Ground” terminal (3) of sensor. Then using
ohmmeter, measure resistance between “Vout”
terminal (4) of sensor and negative terminal of
battery by passing magnetic substance (iron) (5)
while keeping approximately 1 mm (0.03 in.) gap
with respect to end face of CMP sensor.
If resistance does not vary as specified below,
replace CMP sensor.
CMP sensor resistance
Resistance varies from less than 220 Ω (ON) to
infinity (OFF) or from infinity (OFF) to less than 220
Ω (ON)
Crankshaft Position (CKP) Sensor Removal and
Installation
S6RW0D1306014
Removal
1) Disconnect negative cable at battery.
2) Remove generator drive belt, loosen pivot bolt and
move generator rearward.
3) Disconnect connector from crankshaft position
sensor.
4) Remove crankshaft position sensor (1) from cylinder
block.
Installation
1) Install crankshaft position sensor to cylinder block.
Tighten CKP sensor bolt to specified torque.
Tightening torque
CKP sensor bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
2) Connect connector to CKP sensor securely.
3) Adjust generator drive belt tension referring to
“Water Pump / Generator Drive Belt Tension
Inspection and Adjustment in Section 1F”.
4) Connect negative cable to battery.
[A]: Non-VVT model [B]: VVT model
I4RS0B130016-02
I2RH0B130012-01
(a)
I4RS0A130007-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-11
Crankshaft Position (CKP) Sensor InspectionS6RW0D1306015
Visual check
• Check that O-ring is free from damage.
• Check that end face of sensor and signal pulley tooth
are free from any metal particles and damage.
Performance check
1) Remove metal particles on end face of CKP sensor,
if any.
2) Arrange 12 V battery (1) and connect its positive
terminal to “Vin” terminal (2) and negative terminal to
“Ground” terminal (3) of sensor. Then using
ohmmeter, measure resistance between “Vout”
terminal (4) of sensor and negative terminal of
battery by passing magnetic substance (iron) (5)
while keeping approximately 1 mm (0.03 in.) gap
with respect to end face of CKP sensor.
If resistance does not vary as specified below,
replace CKP sensor.
CKP sensor resistance
Resistance varies from less than 220 Ω (ON) to
infinity (OFF) or from infinity (OFF) to less than 220
Ω (ON)
Knock Sensor Removal and InstallationS6RW0D1306016
Removal
1) Disconnect negative cable at battery.
2) Hoist vehicle.
3) Remove right side drive shaft referring to “Front
Drive Shaft Assembly Removal and Installation in
Section 3A”.
4) Disconnect knock sensor connector (1).
5) Remove knock sensor (2) from cylinder block.
Installation
Reverse removal procedure for installation.
Tightening torque
Knock sensor (a): 22 N·m (2.2 kgf-m, 16.0 lb-ft)
[A]: non-VVT model [B]: VVT model
I3RB0A130006-01
I4RS0B130017-01
1
2, (a)
I5RW0A130009-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-13
Mass Air Flow (MAF) and Intake Air
Temperature (IAT) Sensor Removal and
Installation
S6RW0D1306019
CAUTION!
• Do not disassemble MAF and IAT sensor.
• Do not expose MAF and IAT sensor to any
shock.
• Do not clean MAF and IAT sensor.
• If MAF and IAT sensor has been dropped, it
should be replaced.
• Do not blow compressed air by using air
gun or the like.
• Do not put finger or any other object into
MAF and IAT sensor. Malfunction may
occur.

Removal
1) Disconnect negative cable at battery.
2) Disconnect MAF and IAT sensor connector.
3) Remove air cleaner case (1).
4) Remove MAF and IAT sensor (2) from air cleaner
case.
Installation
Reverse removal procedure noting the followings.
• Tighten MAF and IAT sensor screws to specified
torque.
Tightening torque
MAF and IAT sensor screw: 1.5 N·m (0.15 kgf-m,
1.1 lb-ft)
• Connect MAF and IAT sensor connector securely.
Intake Air Temperature (IAT) Sensor InspectionS6RW0D1306020
CAUTION!
Do not heat up MAF and IAT sensor more
than 100 °C (212 °F). Otherwise, MAF and IAT
sensor will be damaged.

• Check sensor O-ring (1) for damage and
deterioration. Replace as necessary.
• Blow hot air to temperature sensing part (2) of MAF
and IAT sensor (3) using hot air drier (4) and measure
resistance between sensor terminals while heating air
gradually.
If measured resistance does not show such
characteristic as shown, replace MAF and IAT sensor.
Intake air temperature sensor resistance
–20 °C (–4 °F): 13.6 – 18.4 kΩ
20 °C (68 °F): 2.21 – 2.69 kΩ
60 °C (140 °F): 0.493 – 0.667 kΩ
I6RW0D130004-02
[A]: Lower limit [D]: Resistance
[B]: Nominal [E]: Temperature
[C]: Upper limit 5. Temperature gauge
20 0
68 32 104 140 17640 60 80 (2.45)
(0.58)
1
2 3
45
[A][B]
[E] [C] [D]
I4RS0A130012-01

Downloaded from www.Manualslib.com manuals search engine 1C-14 Engine Electrical Devices:
Specifications
Tightening Torque SpecificationsS6RW0D1307001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”. Fastening partTightening torque
Note
N⋅mkgf-mlb-ft
ECM mounting bolt 8 0.8 6.0)
ECT sensor 15 1.5 11.0)
Heated oxygen sensor 45 4.5 32.5)
CMP sensor bolt (non-VVT model) 10 1.0 7.5)
CMP sensor bolt (VVT model) 11 1.1 8.0)
CKP sensor bolt 11 1.1 8.0)
Knock sensor 22 2.2 16.0)
MAF and IAT sensor screw 1.5 0.15 1.1)

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-5
Targeted Timing Varying Operation
Diagnostic Information and Procedures
Compression CheckS6RW0D1404001
Check compression pressure on all 4 cylinders as
follows:
1) Warm up engine to normal operating temperature.
2) Stop engine after warming up.
NOTE
After warming up engine, place transmission
gear shift lever in “Neutral” (shift selector
lever to “P” range for A/T model), and set
parking brake and block drive wheels.

3) Remove air cleaner assembly with air suction hose
referring to “Air Cleaner Assembly Removal and
Installation”.
4) Remove cylinder head upper cover.
5) Remove ignition coil assemblies and all spark plugs
referring to “Spark Plug Removal and Installation in
Section 1H”.
6) Disconnect fuel injector wires at the coupler.7) Install special tools (Compression gauge) into spark
plug hole.
Special tool
(A): 09915–64512
(B): 09915–64530
(C): 09915–67010 Driving condition Valve timing Target of control Effect
Engine running at idle
speedMost retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold.Stabilization of the engine
rotation at idle speed.
Average engine load
rangeTo the advanced
sideTo lengthen the valve opening overlap
in order to enhance the internal
exhaust gas recirculation and reduce
the pumping loss.Improvement of the fuel
efficiency.
Lowering of the exhaust
emission.
Light engine load
rangeTo the retarded sideTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold.Keeping of the engine stability.
Low or average
engine speed range
with heavy engine
loadTo the advanced
sideTo advance the closing timing of the
intake valve in order to improve the
volumetric efficiency.Improvement of generating the
engine torque at low and
average engine speed.
High engine speed
range with heavy
engine loadTo the retarded sideTo retard the closing timing of the
intake valve in order to improve the
volumetric efficiency.Improvement of generating the
engine power.
Low engine coolant
temperatureMost retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold and
reduce the fuel increasing.
To slow the fast idle speed of the
engine as a result of stabilizing the
engine idling.Stabilization of the fast idling of
the engine.
Improvement of the fuel
efficiency.
At engine starting and
stoppingMost retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold.Improvement of start ability.
(A)
(C)
(B)
I3RH0B140009-01