ENGINE MECHANICAL (M13 ENGINE) 6A1-85
9) Install flywheel (drive plate for A/T).
Using special tool, lock flywheel or drive plate, and tighten
flywheel or drive plate bolts applied with sealant to specifica-
tion.
“A” : Sealant 99000-31110
Special tool
(A) : 09924-17810
Tightening torque
Flywheel or drive plate bolts
(a) : 70 N·m (7.0 kg-m, 51.0 lb-ft)
10) Install the following parts to engine as previously outlined.
Piston and connecting rod
Cylinder head assembly
Camshaft, tappet and shim
Timing chain guide, chain tensioner adjuster, chain ten-
sioner, timing chain and crankshaft timing sprocket
Timing chain cover
Cylinder head cover
Intake manifold and exhaust manifold
Oil pan and oil pump strainer
11) Install clutch to flywheel (vehicle with M/T) referring to Sec-
tion 7C.
12) Install engine assembly to vehicle as previously outlined.
REQUIRED SERVICE MATERIAL
MaterialRecommended SUZUKI product
(Part Number)Use
Sealant Sealant 1207C
(99000-31150)To apply to mating surfaces of cylinder block and oil
pan.
To apply to mating surfaces of cylinder block and
timing chain cover.
To apply to sealing surfaces of cylinder head cover.
To apply to mating surfaces to rear oil seal housing.
Sealant 1207B
(99000-31140)To apply to mating surface of cylinder block, cylin-
der head and timing chain cover.
Sealant 1215
(99000-31110)To apply to the thread of the bolt of water outlet
pipe.
To flywheel (M/T) or drive plate (A/T) bolts.
6A1-86 ENGINE MECHANICAL (M13 ENGINE)
TIGHTENING TORQUE SPECIFICATION
Fastening partTightening torque
Nm kg-m lb-ft
Oil pressure switch 14.0 1.4 10.5
Camshaft housing bolts
(for replacement of shim)8.0 0.8 6.0
Camshaft housing bolts 11.0 1.1 8.0
Cylinder head cover bolts 8.0 0.8 6.0
Intake manifold bolts and nuts 25.0 2.5 18.0
Exhaust manifold bolts and nuts 50.0 5.0 36.5
Exhaust No.1 pipe bolts 50.0 5.0 36.5
Exhaust manifold stiffener bolts 50.0 5.5 36.5
Oil pump strainer bolt 11.0 1.1 8.0
Oil pump strainer bracket bolt 11.0 1.1 8.0
Oil pan bolts and nuts 11.0 1.1 8.0
Oil pan drain plug bolt 50.0 5.0 36.5
Timing chain cover bolts 23.0 2.3 17.0
Engine mounting bolts 75.0 7.5 54.5
Engine mounting bracket bolts 55.0 5.5 40.0
Crank shaft pulley bolt 150.0 15.0 108.5
Oil pump rotor plate bolts 11.0 1.1 8.0
Timing chain No.1 guide bolts 9.0 0.9 6.5
Timing chain tensioner adjuster bolt 11.0 1.1 8.0
Venturi plug 5.0 0.5 3.5
Cylinder head bolts for M8 22.0 2.2 16.0
Cylinder head bolts for M10 a) Tighten 40 N·m
b) Turn 60°
c) Turn 60°a) Tighten 4.0 kg-m
b) Turn 60°
c) Turn 60°a) Tighten 29.0 lb-ft
b) Turn 60°
c) Turn 60°
Connecting rod bearing cap nuts a) Tighten 15 N·m
b) Turn 45°
c) Turn 45°a) Tighten 1.5 kg-m
b) Turn 45°
c) Turn 45°a) Tighten 11.0 lb-ft
b) Turn 45°
c) Turn 45°
Engine mounting bolts and nuts for M10 55.0 5.5 40.0
Engine mounting bolts and nuts for M12 75.0 7.5 54.5
Crankshaft bearing cap No.1 bolts
(for inspection of crankshaft thrust play)50.0 5.0 36.5
Crankshaft bearing cap No.2 bolts 22.0 2.2 16.0
Sensor plate bolts 11.0 1.1 8.0
Crankshaft bearing cap No.1 bolts a) Tighten 50 N·m
b) Turn 60°a) Tighten 5.0 kg-m
b) Turn 60°a) Tighten 36.5 lb-ft
b) Turn 60°
Rear oil seal housing bolts 11.0 1.1 8.0
Flywheel or drive plate bolts 70.0 7.0 51.0
6B-12 ENGINE COOLING
COOLING WATER PIPES OR HOSES
REMOVAL
1) Drain cooling system.
2) To remove these pipes or hoses, loosen clamp on each
hose and pull hose end off.
INSTALLATION
Install removed parts in reverse order of removal procedure, not-
ing the following.
Tighten each clamp securely.
Refill cooling system with proper coolant referring to “COOL-
ING SYSTEM REFILL”.
THERMOSTAT
REMOVAL
1) Drain cooling system by loosening drain plug of radiator
referring to “COOLING SYSTEM DRAINING”.
2) Remove air cleaner assembly and resonator referring to sec-
tion 6A1
3) Remove intake manifold referring to Section 6A1.
4) Remove generator referring to Section 6H.
5) Disconnect water hose (1) and heater hose (2) from each
pipe.
6) Remove thermostat case (3) with thermostat cap (4) and
water inlet pipe (5).
7) Remove water inlet pipe with thermostat cap from thermo-
stat case.
8) Remove thermostat.
INSPECTION
Make sure that air bleed valve (1) of thermostat is clean.
Should this valve be clogged, engine would tend to overheat.
Check to make sure that valve seat is free from foreign mat-
ters which would prevent valve from seating tight.
Check thermostat seal (2) for breakage, deterioration or any
other damage.
ENGINE AND EMISSION CONTROL SYSTEM 6E1-1
6F1
6F2
6G
6H
6E1
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 6E1
ENGINE AND EMISSION CONTROL SYSTEM
CONTENTS
GENERAL DESCRIPTION ............................ 6E1-2
AIR INTAKE SYSTEM ............................... 6E1-5
FUEL DELIVERY SYSTEM ....................... 6E1-6
FUEL PUMP ........................................... 6E1-6
ELECTRONIC CONTROL SYSTEM .......... 6E1-7
ENGINE & EMISSION CONTROL
INPUT/OUTPUT TABLE ........................ 6E1-8
ECM INPUT/OUTPUT CIRCUIT
DIAGRAM............................................... 6E1-9
ECM TERMINAL ARRANGEMENT
TABLE .................................................. 6E1-13
ON-VEHICLE SERVICE .............................. 6E1-15
ACCELERATOR CABLE
ADJUSTMENT ..................................... 6E1-15
IDLE SPEED/IDLE AIR CONTROL
(IAC) DUTY INSPECTION ................... 6E1-15
IDLE MIXTURE INSPECTION /
ADJUSTMENT (VEHICLE WITHOUT
HEATED OXYGEN SENSOR) ............. 6E1-17
AIR INTAKE SYSTEM ............................. 6E1-18
THROTTLE BODY ............................... 6E1-18IDLE AIR CONTROL VALVE (IAC
VALVE) ................................................ 6E1-20
FUEL DELIVERY SYSTEM ..................... 6E1-21
FUEL PRESSURE INSPECTION ........ 6E1-21
FUEL PUMP WITH PRESSURE
REGULATOR ....................................... 6E1-22
FUEL INJECTOR ................................. 6E1-23
ELECTRONIC CONTROL SYSTEM ....... 6E1-27
ENGINE CONTROL MODULE
(ECM) ................................................... 6E1-27
MANIFOLD ABSOLUTE PRESSURE
SENSOR (MAP SENSOR)................... 6E1-27
THROTTLE POSITION SENSOR (TP
SENSOR) ............................................. 6E1-28
INTAKE AIR TEMPERATURE
SENSOR (IAT SENSOR) ..................... 6E1-29
ENGINE COOLANT TEMPERATURE
SENSOR (ECT SENSOR) ................... 6E1-30
HEATED OXYGEN SENSOR (HO2S-1
AND HO2S-2) ...................................... 6E1-31
CAMSHAFT POSITION SENSOR ....... 6E1-32 WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System :
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
Whether the following system (parts) are used in the particular vehicle or not depends on vehicle
specifications. Be sure to bear this in mind when performing service work.
EGR valve
Heated oxygen sensor(s) or CO adjusting resistor
Three way catalytic converter
Immobilizer indicator lamp
Knock sensor
6E1-2 ENGINE AND EMISSION CONTROL SYSTEM
CRANKSHAFT POSITION SENSOR .. 6E1-32
VEHICLE SPEED SENSOR (VSS) ...... 6E1-33
FUEL LEVEL SENSOR (GAUGE) ....... 6E1-33
KNOCK SENSOR (IF EQUIPPED) ...... 6E1-33
MAIN RELAY, FUEL PUMP RELAY
AND RADIATOR FAN RELAY NO.1.... 6E1-33
FUEL CUT OPERATION ..................... 6E1-34
RADIATOR FAN CONTROL
SYSTEM .............................................. 6E1-34
RADIATOR FAN RELAY NO. 2 AND
NO.3 ..................................................... 6E1-34OUTPUT SIGNALS OF THROTTLE
VALVE OPENING AND ENGINE
COOLANT TEMP. (VEHICLE WITH
A/T ONLY) ........................................... 6E1-36
EMISSION CONTROL SYSTEM ............. 6E1-36
EGR SYSTEM ..................................... 6E1-36
EVAPORATIVE EMISSION CONTROL
SYSTEM .............................................. 6E1-37
PCV SYSTEM ...................................... 6E1-39
SPECIAL TOOL .......................................... 6E1-40
TIGHTENING TORQUE SPECIFICATION . 6E1-41
GENERAL DESCRIPTION
The engine and emission control system is divided into 4 major sub-systems : air intake system, fuel delivery
system, electronic control system and emission control system.
Air intake system includes air cleaner, throttle body, IAC valve and intake manifold.
Fuel delivery system includes fuel pump, delivery pipe, fuel pressure regulator, etc. Electronic control system
includes ECM, various sensors and controlled devices.
Emission control system includes EGR, EVAP and PCV system.
ENGINE AND EMISSION CONTROL SYSTEM 6E1-5
AIR INTAKE SYSTEM
The main components of the air intake system are air cleaner (1), air cleaner outlet hose (2), throttle body (3),
idle air control valve (4) and intake manifold (5).
The air (by the amount corresponding to the throttle valve (6) opening and engine speed) is filtered by the air
cleaner (1), passes through the throttle body (3), is distributed by the intake manifold (5) and finally drawn into
each combustion chamber.
When the idle air control valve (4) is opened according to the signal from ECM, the air (7) bypasses the throttle
valve (6) through bypass passage and is finally drawn into the intake manifold (5).
1. Air Cleaner 16. Immobilizer indicator lamp (if equipped) 31. Monitor connector (vehicle without immobi-
lizer indicator lamp)
2. EVAP canister purge valve 17. Knock sensor (if equipped) 31-1. Diagnosis switch terminal (vehicle without
immobilizer indicator lamp)
3. IAT sensor 18. ECT sensor 31-2. Test switch terminal (vehicle without immobi-
lizer indicator lamp)
4. TP sensor 19. CMP sensor 31-3. Duty output terminal (vehicle without immobi-
lizer indicator lamp)
5. IAC valve 20. CKP sensor 32. Stop lamp
6. MAP sensor 21. VSS 33. Stop lamp switch
7. EGR valve (if equipped) 22. Radiation fan 34. ECM
8. EVAP canister 23. Malfunction indicator lamp in combination meter 35. Barometric pressure sensor (if equipped)
9. Tank pressure control valve (built-in fuel pump) 24. Park/Neutral position switch (A/T) 36. Battery
10. Fuel pump (with pressure regulator) 25. Ignition switch 37. CO adjusting resistor (if equipped)
11. Fuel level sensor (vehicle with immobilizer indi-
cator lamp)26. Starter magnetic switch 38. A/C compressor clutch (if equipped)
12. Ignition coil assembly 27. TCM 39. A/C switch (if equipped)
13. Fuel injector 28. Transmission range switch (A/T) 40. A/C evaporator temp. sensor (if equipped)
14. Heated Oxygen Sensor (HO2S)-1
(if equipped)29. DLC 41. Immobilizer control module (if equipped)
15. Heated Oxygen Sensor (HO2S)-2
(if equipped)30. Electric load 42. Main relay
54
2
1
6
3
7
6E1-6 ENGINE AND EMISSION CONTROL SYSTEM
FUEL DELIVERY SYSTEM
The fuel system consists of fuel tank (1), fuel pump (2) (with built-in fuel filter (3) and fuel pressure regulator (4)),
delivery pipe (5), injectors (6) and fuel feed line (7).
The fuel (8) in the fuel tank (1) is pumped up by the fuel pump (2), sent into delivery pipe (5) and injected by the
injectors (6).
As the fuel pump assembly is equipped with built-in fuel filter (3) and fuel pressure regulator (4), the fuel (8) is fil-
tered and its pressure is regulated before being sent to the delivery pipe (5).
The excess fuel from fuel pressure regulation process is returned back (9) into the fuel tank.
Also, fuel vapor generated in fuel tank is led through the fuel vapor line (10) into the EVAP canister (12).
FUEL PUMP
An in-tank type electric pump has been adopted for the fuel pump
(1). Incorporated in the pump assembly are;
Tank pressure control valve (2) which keeps the pressure in
the fuel tank constant, and prevents the fuel from spouting
and tank itself from being deformed.
Relief valve (3) which prevents the pressure in tank from ris-
ing excessively.
Fuel cut valve (4) which closes as the float rises so that the
fuel will not enter the canister when the fuel level in the tank
rises high depending on the fuel level in the tank and the
vehicle tilt angle.
Also, a fuel filter (5) and a fuel pressure regulator (6) are included
and a fuel level gauge (7) is attached.
Addition of the fuel pressure regulator (6) to the fuel pump makes
it possible to maintain the fuel pressure at constant level and
ECM controls compensation for variation in the intake manifold
pressure.
11. Intake manifold
ENGINE AND EMISSION CONTROL SYSTEM 6E1-19
5) Disconnect electric connector from TP sensor (1) and IAC
valve (2).
6) Remove throttle body from intake manifold.
7) Disconnect engine coolant hoses from throttle body.
DISASSEMBLY
Remove TP sensor and IAC valve from throttle body.
CLEANING
Clean throttle body bore (1) and idle air passage (2) by blowing
compressed air.
REASSEMBLY
1) Install IAC valve to throttle body referring to “IAC valve Instal-
lation” section.
2) Install TP sensor to throttle body referring to “TP sensor
Installation” section.
INSTALLATION
1) Clean mating surfaces and install throttle body gasket to
intake manifold.
Use new gasket.
2) Connect engine coolant hoses.
NOTE:
While disassembling and assembling throttle body, use
special care not to deform levers on throttle valve shaft
or cause damage to any other parts.
NOTE:
TP sensor, idle air control valve or other components
containing rubber must not be placed in a solvent or
cleaner bath. A chemical reaction will cause these parts
to swell, harden or get distorted.