2000 SUZUKI SWIFT fuel pressure

0A-8 GENERAL INFORMATION
 Make sure that all parts used in reassembly are perfectly
clean.
When use of a certain type of lubricant, bond or sealant
is specified, be sure to use the specified type.
“A” : Sealant 99000-31150
 Be sure to use special tools when instructed.
Special Tool
(A) : 09917-98221
(B) : 09916-58210
 When disconnecting vacuum hoses, attach a tag
describing the correct installation positions so that the
hoses can be reinstalled correctly.
 After servicing fuel, oil, coolant, vacuum, exhaust or
brake systems, check all lines related to the system for
leaks.
 For vehicles equipped with fuel injection systems, never
disconnect the fuel line between the fuel pump and
injector without first releasing the fuel pressure, or fuel
can be sprayed out under pressure.
 When performing a work that produces a heat exceeding
80°C (176°F) in the vicinity of the electrical parts, remove
the heat sensitive electrical part(s) beforehand.

0A-22 GENERAL INFORMATION
ABBREVIATIONS AND SYMBOLS MAY BE USED IN THIS MANUAL
ABBREVIATIONS
AABS Anti-lock Brake System
EEFE Heater Early Fuel Evaporation Heater
(Positive Temperature Coefficient,
PTC Heater) ATDC After Top Dead Center
API American Petroleum Institute
ATF Automatic Transmission Fluid EPS Electronic Power Steering
ALR Automatic Locking Retractor EVAP Evaporative Emission
AC Alternating Current EVAP Canister Evaporative Emission Canister
(Charcoal Canister)
A/T Automatic TransmissionF
4WD 4 Wheel Drive
A/C Air Conditioning
GGEN Generator
ABDC After Bottom Dead Center GND Ground
A/F Air Fuel Mixture Ratio
HHC Hydrocarbons
A-ELR Automatic-Emergency Locking
RetractorHO2S Heated Oxygen Sensor
IIAC Valve Idle Air Control Valve (Idle Speed
Control Solenoid Valve ISC Sole-
noid Valve)
BB+ Battery Positive Voltage
BTDC Before Top Dead Center
BBDC Before Bottom Dead Center IAT Sensor Intake Air Temperature Sensor
(Air temperature Sensor, ATS)
CCKT Circuit
CKP sensor Crankshaft Position Sensor ICM Immobilizer Control Module
CMP sensor Camshaft Position Sensor IG Ignition
CO Carbon Monoxide ISC Actuator Idle Speed Control Actuator
CPP switch Clutch Pedal Position Switch
(Clutch Switch, Clutch Start
Switch)LLH Left Hand
LSPV Load Sensing Proportioning Valve
CPU Central Processing Unit
MMAF Sensor Mass Air Flow Sensor (Air Flow
Sensor, AFS, Air Flow Meter,
AFM) CRS Child Restraint System
DDC Direct Current
DLC Data Link Connector (Assembly
Line Diag. Link, ALDL, Serial Data
Link, SDL)MAP Sensor Manifold Absolute Pressure Sen-
sor (Pressure Sensor, PS)
Max Maximum
DOHC Double Over Head Camshaft MFI Multiport Fuel Injection
(Multipoint Fuel Injection)
DOJ Double Offset Joint
DRL Daytime Running Light MIN Minimum
DTC Diagnostic Trouble Code (Diag-
nostic Code)MIL Malfunction Indicator Lamp
(“SERVICE ENGINE SOON”
Light)
EEBCM Electronic Brake Control Module,
ABS Control Module M/T Manual Transmission
EBD Electronic Brake Force Distribu-
tionNNOx Nitrogen Oxides
ECM Engine Control Module
OOBD On-Board Diagnostic System
(Self-Diagnosis Function)
ECT sensor Engine Coolant Temperature Sen-
sor (Water Temp. Sensor, WTS)
O/D Overdrive
EGR Exhaust Gas Recirculation OHC Over Head Camshaft
EGRT sensor EGR Temperature Sensor (Recir-
culated Exhaust Gas Temp. Sen-
sor, REGTS)O2S Oxygen Sensor
PPNP Park/Neutral Position
P/S Power Steering

GENERAL INFORMATION 0A-23
PPSP Switch Power Steering Pressure Switch
(P/S Pressure Switch)
PCM Powertrain Control Module
PCV Positive Crankcase Ventilation
R
RH Right Hand
SSAE Society of Automotive Engineers
SDM Sensing and Diagnostic Module
(Air bag controller, Air bag con-
trol module)
SFI Sequential Multiport Fuel Injec-
tion
SOHC Single over Head Camshaft
TTBI Throttle Body Fuel Injection
(Single-Point Fuel Injection, SPI)
TCC Torque Converter Clutch
TCM Transmission Control Module
(A/T Controller, A/T Control
Module)
TP Sensor Throttle Position Sensor
TVV Thermal Vacuum Valve (Ther-
mal Vacuum Switching Valve,
TVSV, Bimetal Vacuum Switch-
ing Valve, BVSV)
TWC Three Way Catalytic Converter
(Three Way Catalyst)
2WD 2 Wheel Drive
VVIN Vehicle Identification Number
VSS Vehicle Speed Sensor
WWU-OC Warm Up Oxidation Catalytic
Converter
WU-TWC Warm Up Three Way Catalytic
Converter

3F-6 WHEELS AND TIRES
INFLATION OF TIRES
The pressure recommended for any model is carefully calculated to give a satisfactory ride, stability, steering,
tread wear, tire life and resistance to bruises.
Tire pressure, with tires cold, (after vehicle has set for 3 hours or more, or driven less than one mile) should be
checked monthly or before any extended trip. Set to the specifications on the “Tire Placard” located on the left
door (right door for right-hand side steering vehicle) lock pillar.
It is normal for tire pressure to increase when the tires become hot during driving.
Do not bleed or reduce tire pressure after driving. Bleeding reduces the “Cold Inflation Pressure”.
Higher than recommended pressure can cause :
Hard ride
Tire bruising or carcass damage
Rapid tread wear at center of tire
Unequal pressure on same axle can cause :
Uneven braking
Steering lead
Reduced handling
Swerve on acceleration
Lower than recommended pressure can cause :
Tire squeal on turns
Hard Steering
Rapid and uneven wear on the edges of the tread
Tire rim bruises and rupture
Tire cord breakage
High tire temperature
Reduced handling
High fuel consumption
TIRE ROTATION
To equalize wear, rotate tires according to left figure. Radial tires
should be rotated periodically. Set tire pressure.
NOTE:
Due to their design, radial tires tend to wear faster in the
shoulder area, particularly in front positions. This makes
regular rotation especially necessary.
[A] : 5-tire rotation
[B] : 4-tire rotation
LH : Left-hand drive
RH : Right-hand drive

5-12 BRAKES
2) Start engine while depressing brake pedal. If pedal travel
increases a little, operation is satisfactory. But no change in
pedal travel indicates malfunction.
CHECK AIR TIGHTNESS UNDER LOAD
1) With engine running, depress brake pedal. Then stop engine
while holding brake pedal depressed.
2) Hold brake pedal depressed for 30 seconds. If pedal height
does not change, condition is good. But it isn’t if pedal rises.
FLUID PRESSURE TEST (IF EQUIPPED WITH
LSPV)
Test procedure for LSPV assembly is as follows.
Before testing, confirm the following.
Fuel tank is filled with fuel fully.
Vehicle is equipped with spare tire, tools, jack and jack han-
dle.
H: Hold
H: Hold
T: 30 seconds

BRAKES 5-49
INSTALLATION
1) Install LSPV assembly with spring to vehicle body.
2) Torque each bolt and nut (1) to specification as indicated
respectively in figure.
Special tool
(A) : 09950-78230 (10 x 11 mm)
Tightening torque
LSPV adjust nut (a) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
Brake pipe flare nuts (b) : 16 N·m (1.6 kg-m, 11.5 lb-ft)
3) Fill reservoir with specified fluid and bleed air from brake
system.
4) After bleeding air, check that LSPV is installed properly
referring to following “INSPECTION & ADJUSTMENT”.
INSPECTION AND ADJUSTMENT
1) Confirm the following before inspection and adjustment.
Fuel tank is filled with fuel fully.
Vehicle is equipped with spare tire, tools, jack and jack han-
dle.
Vehicle is free from any other load.
Vehicle is placed on level floor.
2) Push up LSPV lever with finger till it stops and measure
length of coil spring (“a” in figure).
3) Spring length “a” should be as specified.
Spring length “a”
2WD : 144 mm (5.67 in.)
4WD : 148 mm (5.83 in.)
4) If it isn’t, adjust it to specification by changing spring position
as shown in figure. After adjustment, tighten nut (1) to speci-
fied torque.
Tightening torque
LSPV adjust nut (a) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
5) Confirm fluid pressure referring to “Fluid Pressure Test”.
1, (a)
(b)
NOTE:
Check to make sure that LSPV body and brake pipe joints
are free from fluid leakage. Replace defective parts, if
any.
1, (a)
“a”

ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-1
6
6F2
6G
6H
6K
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8E
9
10A
10B
SECTION 6
ENGINE GENERAL INFORMATION AND
DIAGNOSIS
ENGINE GENERAL INFORMATION AND ENGINE DIAGNOSIS................................................. Section 6
ENGINE MECHANICAL ................................................................................................................. Section 6A1
ENGINE COOLING......................................................................................................................... Section 6B
ENGINE FUEL ................................................................................................................................ Section 6C
ENGINE AND EMISSION CONTROL SYSTEM ............................................................................ Section 6E1
IGNITION SYSTEM ........................................................................................................................ Section 6F1
CRANKING SYSTEM ..................................................................................................................... Section 6G
CHARGING SYSTEM ..................................................................................................................... Section 6H
EXHAUST SYSTEM ....................................................................................................................... Secton 6K
CONTENTS
GENERAL INFORMATION ................................ 6-4
STATEMENT ON CLEANLINESS AND
CARE .............................................................. 6-4
GENERAL INFORMATION ON ENGINE
SERVICE ........................................................ 6-4PRECAUTION ON FUEL SYSTEM
SERVICE .................................................... 6-5
FUEL PRESSURE RELIEF
PROCEDURE ............................................. 6-6
FUEL LEAKAGE CHECK PROCEDURE.... 6-6 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 systems (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 (vehicle with immobilizer indicator lamp can be identified also by HO2S-
2)
Knock sensor

6-2 ENGINE GENERAL INFORMATION AND DIAGNOSIS
ENGINE DIAGNOSIS ......................................... 6-6
GENERAL DESCRIPTION ............................. 6-6
ON-BOARD DIAGNOSTIC SYSTEM
(VEHICLE WITH IMMOBILIZER INDICATOR
LAMP) ............................................................. 6-7
ON-BOARD DIAGNOSTIC SYSTEM
(VEHICLE WITHOUT IMMOBILIZER
INDICATOR LAMP) ...................................... 6-10
PRECAUTION IN DIAGNOSING
TROUBLE ..................................................... 6-11
ENGINE DIAGNOSTIC FLOW TABLE ......... 6-12
CUSTOMER PROBLEM INSPECTION
FORM (EXAMPLE) ................................... 6-14
MALFUNCTION INDICATOR LAMP (MIL)
CHECK...................................................... 6-15
DIAGNOSTIC TROUBLE CODE (DTC)
CHECK...................................................... 6-15
DIAGNOSTIC TROUBLE CODE (DTC)
CLEARANCE ............................................ 6-16
DIAGNOSTIC TROUBLE CODE (DTC)
TABLE ....................................................... 6-17
FAIL-SAFE TABLE.................................... 6-20
VISUAL INSPECTION .............................. 6-22
ENGINE BASIC INSPECTION.................. 6-23
ENGINE DIAGNOSIS TABLE ................... 6-26
SCAN TOOL DATA....................................... 6-31
INSPECTION OF ECM AND ITS
CIRCUITS ..................................................... 6-36
ECM VOLTAGE VALUES TABLE............. 6-37
TERMINAL RESISTANCE TABLE............ 6-43
COMPONENT LOCATION ........................... 6-45
TABLE A-1 MALFUNCTION INDICATOR
LAMP CIRCUIT CHECK - LAMP DOES NOT
COME “ON” AT IGNITION SWITCH ON
(BUT ENGINE AT STOP) ............................. 6-46
TABLE A-2 MALFUNCTION INDICATOR
LAMP CIRCUIT CHECK - LAMP REMAINS
“ON” AFTER ENGINE STARTS ................... 6-47
TABLE A-3 MIL CHECK - MIL FLASHES
AT IGNITION SWITCH ON (VEHICLE
WITHOUT IMMOBILIZER INDICATOR
LAMP) ........................................................... 6-48
TABLE A-4 MIL CHECK - MIL DOES NOT
FLASH OR JUST REMAINS ON EVEN
WITH GROUNDING DIAGNOSIS SWITCH
TERMINAL (VEHICLE WITHOUT
IMMOBILIZER INDICATOR LAMP) .............. 6-48
TABLE A-5 ECM POWER AND GROUND
CIRCUIT CHECK - MIL DOESN’T LIGHT
AT IGNITION SWITCH ON AND ENGINE
DOESN’T START THOUGH IT IS
CRANKED UP .............................................. 6-49
DTC P0105 (DTC NO.11) MANIFOLD
ABSOLUTE PRESSURE (MAP) CIRCUIT
MALFUNCTION ............................................ 6-52
DTC P0110 (DTC NO.18) INTAKE AIR
TEMP. (IAT) CIRCUIT MALFUNCTION ....... 6-55
DTC P0115 (DTC NO.19) ENGINE
COOLANT TEMPERATURE (ECT) CIRCUIT
MALFUNCTION ............................................ 6-57DTC P0120 (DTC NO.13) THROTTLE
POSITION CIRCUIT MALFUNCTION ........... 6-60
DTC P0121 THROTTLE POSITION CIRCUIT
RANGE/PERFORMANCE PROBLEM .......... 6-63
DTC P0130 (DTC NO.14) HEATED OXYGEN
SENSOR (HO2S) CIRCUIT MALFUNCTION
(SENSOR-1) .................................................. 6-66
DTC P0133 HEATED OXYGEN SENSOR
(HO2S) CIRCUIT SLOW RESPONSE
(SENSOR-1) .................................................. 6-68
DTC P0134 HEATED OXYGEN SENSOR
(HO2S) CIRCUIT NO ACTIVITY DETECTED
(SENSOR-1) .................................................. 6-69
DTC P0135 (DTC NO.14) HEATED OXYGEN
SENSOR (HO2S) HEATER CIRCUIT
MALFUNCTION (SENSOR-1) ....................... 6-70
DTC P0136 HEATED OXYGEN SENSOR
(HO2S) CIRCUIT MALFUNCTION
(SENSOR-2) .................................................. 6-72
DTC P0141 HEATED OXYGEN SENSOR
(HO2S) HEATER CIRCUIT MALFUNCTION
(SENSOR-2) .................................................. 6-74
DTC P0171 FUEL SYSTEM TOO LEAN ....... 6-76
DTC P0172 FUEL SYSTEM TOO RICH ....... 6-76
DTC P0300 RANDOM MISFIRE DETECTED
(MISFIRE DETECTED AT 2 OR MORE
CYLINDERS) ................................................. 6-81
DTC P0301 CYLINDER 1 MISFIRE
DETECTED ................................................... 6-81
DTC P0302 CYLINDER 2 MISFIRE
DETECTED ................................................... 6-81
DTC P0303 CYLINDER 3 MISFIRE
DETECTED ................................................... 6-81
DTC P0304 CYLINDER 4 MISFIRE
DETECTED ................................................... 6-81
DTC P0325 (DTC NO.17) KNOCK SENSOR
CIRCUIT MALFUNCTION ............................. 6-86
DTC P0335 (DTC NO.23) CRANKSHAFT
POSITION (CKP) SENSOR CIRCUIT
MALFUNCTION ............................................. 6-88
DTC P0340 (DTC NO.15) CAMSHAFT
POSITION (CMP) SENSOR CIRCUIT
MALFUNCTION ............................................. 6-91
DTC P0400 EXHAUST GAS
RECIRCULATION FLOW MALFUNCTION ... 6-94
DTC P0420 CATALYST SYSTEM
EFFICIENCY BELOW THRESHOLD ............ 6-97
DTC P0443 PURGE CONTROL VALVE
CIRCUIT MALFUNCTION ........................... 6-100
DTC P0480 RADIATOR COOLING FAN
CONTROL SYSTEM MALFUNCTION ........ 6-101
DTC P0500 (DTC NO.16) VEHICLE SPEED
SENSOR (VSS) MALFUNCTION ................ 6-103
DTC P0505 (DTC NO.26) IDLE CONTROL
SYSTEM MALFUNCTION ........................... 6-105
DTC P1450 BAROMETRIC PRESSURE
SENSOR LOW/HIGH INPUT....................... 6-108
DTC P1451 BAROMETRIC PRESSURE
SENSOR PERFORMANCE PROBLEM ...... 6-108