VACUUM SUZUKI SWIFT 2000 1.G SF310 Service Service Manual

ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10) 6E1-33
EVAP CANISTER PURGE VALVE INSPECTION
WARNING:
Do not suck the air through valve. Fuel vapor inside valve
is harmful.
1) With the ignition switch OFF position, disconnect coupler from
EVAP canister purge valve.
2) Check resistance between two terminals of EVAP canister
purge valve.
Resistance of EVAP canister purge valve:
33 – 39 Ω at 20C (68F)
If resistance is as specified, proceed to next operation check.
If not, replace.
3) Disconnect vacuum hoses from intake manifold and its pipe.
4) With coupler disconnected, blow into pipe “A”. Air should not
come out of pipe “B”.
5) Connect 12 V-battery to EVAP canister purge valve terminals.
In this state, blow pipe “A”.
Air should come out of pipe “B”.
If check result is not as described, replace canister purge valve.
6) Connect vacuum hoses.
7) Connect EVAP canister purge valve coupler securely.

6E1-34 ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10)
1. Tank pipe
2. Purge pipe
3. Air pipe
4. Blow air
1. Tank pressure
control valve
2. Orange side3. Black side
4. To canister
5. From fuel tank
EVAP CANISTER INSPECTION
WARNING:
DO NOT SUCK nozzles on EVAP canister. Fuel vapor inside
EVAP canister is harmful.
1) Disconnect vacuum hoses from EVAP canister and remove
EVAP canister.
2) When air is blown into tank pipe, there should be no restriction
of flow through purge pipe and air pipe.
If operation differs from above description, EVAP canister must
be replaced.
3) Install EVAP canister and connect hoses to canister.
TANK PRESSURE CONTROL VALVE INSPECTION
WARNING:
DO NOT SUCK air through tank pressure control valve.
Fuel vapor inside the valve is harmful.
1) Remove tank pressure control valve.
2) Air should pass through valve smoothly from fuel tank side
(black side of tank pressure control valve) to orange side when
blown hard.
3) From orange side, even when blown softly, air should come out
of black side.
4) If air doesn’t pass though valve in step 2) or hard blow is required
in step 3), replace tank pressure control valve.
5) Install tank pressure control valve.
NOTE:
When connecting tank pressure control valve between
hoses, refer to figure at the left for installing direction.
PCV SYSTEM
NOTE:
Be sure to check that there is no obstruction in PCV valve or
its hoses before adjusting engine idle speed, for obstructed
PCV valve or hose hampers its accurate adjustment.
PCV HOSE INSPECTION
Check hoses for connection, leakage, clog and deterioration.
Replace as necessary.

ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10) 6E1-35
1. PCV valve
1. Proper size hose
2. Blow air
3. PCV valve
PCV VALVE INSPECTION
1) Disconnect PCV hose from PCV valve.
2) Run engine at idle.
3) Place your finger over end of PCV valve to check for vacuum.
If there is no vacuum, check for clogged valve. Replace as nec-
essary.
4) After checking vacuum, stop engine and check PCV valve for
sticking.
With engine stopped, connect a new hose to PCV valve for in-
spection.
Blow air into the hose and check that air flows with difficulty from
cylinder head side to intake manifold side.
If air flows without difficulty, valve is stuck in “Open” position. Re-
place PCV valve.
WARNING:
Do not suck air through PCV valve. Petroleum substances
inside the valve and fuel vapor inside the intake manifold
are harmful.
5) After removing the hose, connect PCV hose and clamp securely.

09913-76011
SUZUKI scan tool (Tech 1A) kitMass storage cartridge09931-76030
16 / 14 pin DLC cable
1. Fuel pressure gauge
09912-58441
2. Pressure hose
09912-58431
3. 3-way joint & hose
09912-58490
09917-47010
Vacuum pump gauge 1. Storage case
2. Operator’s manual
3. Tech 1A
4. DLC cable (14 / 26 pin,
09931-76040)
5. Test lead / probe
6. Power source cable
7. DLC cable adaptor
8. Self-test adaptor
6E1-36 ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10)
SPECIAL TOOLS
TIGHTENING TORQUE SPECIFICATIONS
FasteningpartsTightening torqueFastening artsN.mkg-mlb-ft
Throttle body mounting bolt232.317.0
Throttle upper and lower body screw3.50.352.5
Fuel injector wire connector screw2.00.201.5
Fuel injector cover screw3.50.352.5
TP sensor mounting screw2.00.201.5
ECT sensor151.511.0
Heated oxygen sensor -1 and -2454.532.5

6E2
ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-1
GENERAL DESCRIPTION6E2- 2 . . . . . . . . . . . . . .
AIR INTAKE SYSTEM 6E2- 6. . . . . . . . . . . . . . . . . .
FUEL DELIVERY SYSTEM 6E2- 7. . . . . . . . . . . . . .
ELECTRONIC CONTROL SYSTEM 6E2- 8. . . . . .
Engine and Emission Control Input /
Output Table 6E2- 9. . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSISSee Section 6. . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE6E2-13 . . . . . . . . . . . . . . . .
Accelerator Cable Adjustment 6E2-13. . . . . . . . . .
Idle Speed/Idle Air Control (IAC)
Duty Inspection 6E2-14. . . . . . . . . . . . . . . . . . . . .
AIR INTAKE SYSTEM 6E2-15. . . . . . . . . . . . . . . . . .
Throttle Body 6E2-15. . . . . . . . . . . . . . . . . . . . . . . .
Idle Air Control Valve 6E2-17. . . . . . . . . . . . . . . . .
FUEL DELIVERY SYSTEM 6E2-18. . . . . . . . . . . . . .
Fuel Pressure Inspection 6E2-18. . . . . . . . . . . . . .
Fuel Pump 6E2-21. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pressure Regulator 6E2-22. . . . . . . . . . . . . . .
Fuel Injector 6E2-23. . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRONIC CONTROL SYSTEM 6E2-27. . . . . .
ECM / PCM 6E2-27. . . . . . . . . . . . . . . . . . . . . . . . . .
MAP Sensor 6E2-27. . . . . . . . . . . . . . . . . . . . . . . . .
TP Sensor 6E2-28. . . . . . . . . . . . . . . . . . . . . . . . . . .
IAT Sensor 6E2-29. . . . . . . . . . . . . . . . . . . . . . . . . .
ECT Sensor 6E2-30. . . . . . . . . . . . . . . . . . . . . . . . . Heated Oxygen Sensor -1 and -2 6E2-31. . . . . . .
Camshaft Position Sensor 6E2-32. . . . . . . . . . . . .
Crankshaft Position Sensor 6E2-32. . . . . . . . . . . .
Vehicle Speed Sensor 6E2-33. . . . . . . . . . . . . . . . .
Fuel Level Sensor (gauge) 6E2-33. . . . . . . . . . . . .
Main Relay, Fuel Pump Relay and
Radiator Fan Control Relay 6E2-33. . . . . . . . . . .
Fuel Cut Operation (Inspection) 6E2-34. . . . . . . .
Radiator Fan Control System 6E2-34. . . . . . . . . .
System Inspection 6E2-34. . . . . . . . . . . . . . . . . .
Radiator Fan 6E2-34. . . . . . . . . . . . . . . . . . . . . . .
EMISSION CONTROL SYSTEM 6E2-35. . . . . . . . .
EGR System 6E2-35. . . . . . . . . . . . . . . . . . . . . . . . .
EVAP Control System 6E2-36. . . . . . . . . . . . . . . . .
EVAP Canister Purge Inspection 6E2-36. . . . . .
Vacuum Passage Inspection 6E2-37. . . . . . . . .
Vacuum Hose Inspection 6E2-37. . . . . . . . . . . .
EVAP Canister Purge Valve
Inspection 6E2-37. . . . . . . . . . . . . . . . . . . . . . . .
EVAP Canister Inspection 6E2-38. . . . . . . . . . .
PCV System 6E2-38. . . . . . . . . . . . . . . . . . . . . . . . .
PCV Hose Inspection 6E2-38. . . . . . . . . . . . . . .
PCV Valve Inspection 6E2-38. . . . . . . . . . . . . . .
SPECIAL TOOLS6E2-39 . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE
SPECIFICATIONS6E2-39 . . . . . . . . . . . . . . . . . . . . .
SECTION 6E2
ENGINE AND EMISSION CONTROL SYSTEM
(SFI FOR G13)
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 autho-
rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “Gener-
al Description” in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” 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).
CONTENTS

6E2-22 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
FUEL PRESSURE REGULATOR
Removal
1) Relieve fuel pressure according to procedure described in sec-
tion 6.
2) Disconnect battery negative cable at battery.
3) Disconnect vacuum hose (3) from fuel pressure regulator (1).
4) Disconnect fuel return hose (2) from fuel pressure regulator (1).
CAUTION:
A small amount of fuel may be released when hose is dis-
connected. Cover hose to be disconnected with a shop
cloth.
5) Remove fuel pressure regulator.
CAUTION:
A small amount of fuel may be released when it is from
delivery pipe.
Place a shop cloth under delivery pipe so that released
fuel is absorbed in it.
Installation
For installation, reverse removal procedure and note following pre-
cautions.

Use new O-ring.

Apply thin coat of spindle oil or gasoline to O-ring to facilitate
installation.

With engine OFF and ignition switch ON, check for fuel leaks
around fuel line connection.
Tightening Torque
Fuel pressure regulator bolt: 11 N
.m (1.1 kg-m, 8.0 lb-ft)

ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-23
FUEL INJECTOR
On-Vehicle Inspection
1) Using sound scope (1) or such, check operating sound of injec-
tor (2) when engine is running or cranking.
Cycle of operating sound should vary according to engine
speed.
If no sound or an unusual sound is heard, check injector circuit
(wire or coupler) or injector (2).
2) Disconnect coupler (1) from injector, connect ohmmeter be-
tween terminals of injector and check resistance.
Resistance of injector: 12.0 – 13.0 Ω at 20C, 68F
If resistance is out of specification, replace.
3) Connect coupler (1) to injector securely.
Removal
1) Relieve fuel pressure according to procedure described in Sec-
tion 6.
2) Disconnect battery negative cable at battery.
3) Disconnect fuel injector couplers.
4) Disconnect vacuum hose from fuel pressure regulator (1).
5) Remove fuel delivery pipe bolts (2).
6) Remove fuel injector(s) (3).
CAUTION:
A small amount of fuel may come out after removal of fuel
injectors, cover them with shop cloth.

ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-37
1) Disconnect purge hose (1) from EVAP canister.
2) Place finger against the end of disconnected hose and check
that vacuum is not felt there when engine is cool and running at
idle speed.
3) Connect purge hose to EVAP canister and warm up engine to
normal operating temperature.
4) Disconnect purge hose from EVAP canister.
5) Also check that vacuum is felt when engine is running at idle
speed.
NOTE:
The EVAP canister purge system does not perform purging
(vacuum is not detected at the purge hose) unless the en-
gine is sufficiently warmed up and the heated oxygen sen-
sor is activated fully. Also, when the purge hose is discon-
nected in Step 4), the air is drawn into the purge line. As a
result, ECM (PCM) detects a change in the purge gas con-
centration and sometimes stops purging but this indicates
nothing abnormal.
If check result is not satisfactory, check vacuum passage, hoses,
EVAP canister purge valve, wire harness and ECM (PCM).
Vacuum Passage Inspection
Start engine and run it at idle speed. Disconnect vacuum hose (1)
from EVAP canister purge valve (2). With finger placed against
hose disconnected, check that vacuum is applied.
If it is not applied, clean vacuum passage by blowing compressed
air.
Vacuum Hose Inspection
Check hoses for connection, leakage, clog and deterioration. Re-
place as necessary.
EVAP Canister Purge Valve Inspection
Check EVAP canister purge valve referring to step 1 of DTC P0443
Flow Table.
If found malfunction, replace.

6E2-38 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
EVAP Canister Inspection
WARNING:
DO NOT SUCK nozzles on EVAP canister. Fuel vapor inside
EVAP canister is harmful.
1) Check outside of EVAP canister visually.
2) Disconnect vacuum hoses from EVAP canister.
3) Check that there should be no restriction of flow through purge
pipe (2) and air pipe (3) when air is blown (4) into tank pipe (1).
If any faulty condition is found in above inspection replace.
PCV SYSTEM
NOTE:
Be sure to check that there is no obstruction in PCV valve or
its hoses before checking IAC duty, for obstructed PCV valve
or hose hampers its accurate adjustment.
PCV Hose Inspection
Check hoses for connection, leakage, clog and deterioration.
Replace as necessary.
PCV Valve Inspection
1) Disconnect PCV valve (1) from cylinder head cover and install
plug to head cover hole.
2) Run engine at idle.
3) Place your finger over end of PCV valve (1) to check for vacuum.
If there is no vacuum, check for clogged valve. Replace as nec-
essary.
4) After checking vacuum, stop engine and remove PCV valve (1).
Shake valve and listen for the rattle of check needle inside the
valve. If valve does not the rattle, replace valve.
5) After checking, remove plug and install PCV valve (1).