ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10) 6E1-25
1. Main relay
2. Relay box
CRANKSHAFT POSITION SENSOR
INSPECTION
Check crankshaft position sensor referring to step 1 and 2 of DTC
P0335 Flow Chart. If malfunction is found, replace.
REMOVAL
1) Hoist vehicle.
2) Remove fender apron extension on right side.
3) Disconnect connector from crankshaft position sensor.
4) Remove crankshaft position sensor from oil pan.
INSTALLATION
1) Check to make sure that crankshaft position sensor and pulley
tooth is free from any metal particles and damage.
2) Install crankshaft position sensor to oil pan.
3) Connect connector to it securely.
4) Install fender apron extension.
MAIN RELAY
INSPECTION
1) Disconnect negative cable at battery.
2) Remove main relay from relay box.
3) Check resistance between each two terminals as in table below.
If check results are as specified, proceed to next operation
check. If not, replace.
TERMINALS
RESISTANCE
Between A and B∞ (infinity)
Between C and D100 – 120 Ω
4) Check that there is continuity between terminals “A” and “B”
when battery is connected to terminals “C” and “D”.
If found defective, replace.
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
12 W / R “N”-range signal (A / T)
13 R Heated oxygen sensor-2
14 Y / R “D”-range signal (A / T)
15 R / W “R”-range signal (A / T)
16 Lg / B A / C SW signal
17 R / W EGR valve (stepper motor coil 4)
18 P / G Radiator fan relay
19 Y / Bl Fuel pump relay
20 —— ———
21 W / B “P”-range signal (A / T)
22 P / Bl Fuel level gauge
23 R / B “L”-range signal (A / T)
24 —— ———
1 V Malfunction indicator lamp
Vehicle speed sensor (M / T)
Output shaft speed sensor (+)
(A / T)
3 —— ———
4 G / W Shift solenoid – A (A / T)
5 Gr Throttle position (TP) sensor
6 B / W Ignition switch signal
7 Y / B Data link connector
Output shaft speed sensor (–)
(A / T)
9 —— ———
10 G GND for HO2S-2
11 G / Or Shift solenoid – B (A / T)
12 —— ———
13 —— ———
14 —— ———
15 —— ———
16 Br Tachometer signal
17 B / Y Engine start signal
CON-
NECTORTERMINALWIRE
COLORCIRCUITCON-
NECTORTERMINALWIRE
COLORCIRCUIT
20
Br / Y 19
Br / W
C02 C01C02
C03
Wire color
B : Black
B / Or : Black / Orange
B / W : Black / White
B / Y : Black / Yellow
Bl : Blue
Bl / Or : Blue / Orange
Bl / B : Blue / Black
Bl / R : Blue / Red
Bl / Y : Blue / Yellow
Br : Brown
Br / W : Brown / White
Br / Y : Brown / Yellow
G : Green
G / Or : Green / Orange
G / R : Green / Red
G / W : Green / White
Gr : Gray
Gr / R : Gray / Red
Lg / B : Lightgreen / Black
Lg / R : Lightgreen / RedP : Pink
P / Bl : Pink / Blue
P / G : Pink / Green
V : Violet
V / G : Violet / Green
V / R : Violet / Red
V / W : Violet / White
W : White
W / B : White / Black
W / R : White / Red
R : Red
R / B : Red / Black
R / Bl : Red / Blue
R / G : Red / Green
R / W : Red / White
R / Y : Red / Yellow
Y / B : Yellow / Black
Y / Bl : Yellow / Blue
Y / R : Yellow / Red
2
P
8
Bl
6E2-12 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
1 B Ground for ECM / PCM
2 B / Or Ground for drive circuit
3 B / Or Ground for drive circuit
4 V / R Canister purge valve
5 G / W Power steering pressure switch
6 V / W IAC valve
7 Bl Heater of HO2S-1
8 Bl / Or No.4 fuel injector
9 Bl / R No.1 fuel injector
10 G Ground for sensor circuit
11 B / W CMP sensor
12 —— ———
13 R Heated oxygen sensor-1
14 Lg / R Coolant temp. sensor
15 Gr / R Intake air temp. sensor
16 —— ———
17 Br / Y Electric load (+)
18 —— ———
IG coil assembly for
No.2 and 3 spark plugs
IG coil assembly for
No.1 and 4 spark plugs
21 Bl / B No.2 fuel injector
22 P Power supply for sensor
23 W CKP sensor (+)
24 B CKP sensor (–)
25 —— ———
26 G MAP sensor
27 —— ———
28 V / G Immobilizer indicator lamp
29 —— ———
30 —— ———
31 Bl / Y No.3 fuel injector
1 G / R A / C compressor clutch
2 R / Y EGR valve (stepper motor coil 1)
3 R / G Data link connector
4 Lg / B Heater of HO2S-2
5 R / B Power source
6 R / B Power source
7 W Backup power source
8 R EGR valve (stepper motor coil 3)
9 R / Bl EGR valve (stepper motor coil 2)
10 Gr Ground for main relay
11 Y / B “2”-range signal (A / T)
6E2-16 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
1
2
5) Disconnect electric coupler from TP sensor (2) and IAC valve
(3).
6) Remove throttle body from intake manifold.
7) Disconnect engine coolant hoses (1) from throttle body.
Disassembly
NOTE:
While disassembling and assembling throttle body, use spe-
cial care not to deform levers on throttle valve shaft or cause
damage to any other parts.
1) Remove TP sensor and IAC valve from throttle body.
Cleaning
Clean throttle body bore (1) and idle air passage (2) by blowing
compressed air.
NOTE:
TP sensor, idle air control valve or other components contain-
ing rubber must not be placed in a solvent or cleaner bath. A
chemical reaction will cause these parts to swell, harden or get
distorted.
Reassembly
1) Install IAC valve to throttle body referring to “IAC valve Installa-
tion” section.
2) Install TP sensor to throttle body referring to “TP sensor Installa-
tion” section.
Installation
1) Clean mating surfaces and install throttle body gasket to intake
manifold.
Use new gasket.
(a)
6E2-32 ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13)
CAMSHAFT POSITION SENSOR
Inspection
Check camshaft position sensor referring to DTC P0340 Diag. Flow
Table in Section 6. If malfunction is found, replace.
Removal
1) Disconnect negative cable at battery.
2) Disconnect connector from camshaft position sensor.
3) Remove camshaft position sensor from sensor case
(distributorless ignition case).
Installation
1) Check that O-ring is free from damage.
2) Check that camshaft position sensor and signal rotor tooth are
free from any metal particles and damage.
3) Install camshaft position sensor to sensor case.
Tightening Torque
(a): 9 N
.m (0.9 kg-m, 6.5 lb-ft)
4) Connect connector to it securely.
5) Connect negative cable to battery.
CRANKSHAFT POSITION SENSOR
Inspection
Check crankshaft position sensor referring to step 1 and 2 of DTC
P0335 Flow Table. If malfunction is found, replace.
Removal
1) Hoist vehicle.
2) Disconnect connector from crankshaft position sensor.
3) Remove crankshaft position sensor from oil pan.
Installation
1) Check to make sure that crankshaft position sensor and pulley
tooth is free from any metal particles and damage.
2) Install crankshaft position sensor to oil pan.
Tightening Torque
(a): 10 N
.m (1.0 kg-m, 7.5 lb-ft)
CAUTION:
Be sure to tighten to specified torque. CKP sensor will be
deformed if overtightened and correct CKP sensor signal
will not be fed if loosened.
3) Connect connector to it securely.
ENGINE AND EMISSION CONTROL SYSTEM (SFI FOR G13) 6E2-39
09930-88530
Injector test lead09931-76011
SUZUKI scan tool (Tech 1A) kit
Mass storage cartridge
09931-76030
16 / 14 pin DLC cable1. Pressure gauge
09912-58441
2. Pressure hose
09912-58431
3. 3-way joint & hose
09912-58490
4. Checking tool set
09912-58421
4-1. Tool body & washer
4-2. Body plug
4-3. Body attachment-1
4-4. Holder
4-5. Return hose & clamp
4-6. Body attachment-2 & washer
4-7. Hose attachment-1
4-8. Hose attachment-2
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
SPECIAL TOOLS
TIGHTENING TORQUE SPECIFICATIONS
FasteningpartsTightening torqueFastening artsN.mkg-mlb-ft
TP sensor mounting screw20.21.5
IAC valve3.30.332.5
ECT sensor121.29.0
Heated oxygen sensor-1 and -2454.532.5
Camshaft position sensor90.96.5
6F
IGNITION SYSTEM 6F-1
GENERAL DESCRIPTION6F- 1 . . . . . . . . . . . . . .
DIAGNOSIS6F- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE6F- 5 . . . . . . . . . . . . . . . .
Ignition Spark Test 6F- 5. . . . . . . . . . . . . . . . . . . .
High-Tension Cords 6F- 5. . . . . . . . . . . . . . . . . . .
Spark Plugs 6F- 6. . . . . . . . . . . . . . . . . . . . . . . . .
Noise Suppressor 6F- 6. . . . . . . . . . . . . . . . . . . . Ignition Coil 6F- 7. . . . . . . . . . . . . . . . . . . . . . . . . .
Igniter 6F- 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distributor 6F- 8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Timing 6F- 9. . . . . . . . . . . . . . . . . . . . . . .
Distributor Unit 6F-10. . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS6F-11 . . . . . . . . . . . . . . . . . . . . . .
The ignition system used for this vehicle has an elec-
tronic ignition control system and consists of the fol-
lowing parts.
ECM
It detects the engine condition through the signals
from the sensors, determines the most suitable igni-
tion timing and time for electricity to flow to the pri-
mary coil and sends a signal to the power unit.
Power unit (Igniter)
It turns ON and OFF the primary current of the igni-
tion coil according to the signal from ECM.
Ignition coil
When the ignition coil primary current is turned OFF,
a high voltage is induced in the secondary winding.
Distributor
It distributes a high voltage current to each plug.High-tension cords and spark plugs.
CMP sensor (Camshaft position Sensor)
Located in the distributor, it converts the crank angle
into voltage variation and sends it to ECM. For its
details, refer to Section 6E1.
TP sensor, ECT sensor and MAP sensor
For their details, refer to Section 6E.
In electronic ignition control system, the ECM is pro-
grammed for the best ignition timing under every en-
gine condition. Receiving signals which indicate the
engine condition from the sensors, e.g., engine revo-
lution, intake air pressure, coolant temperature, etc.,
it selects the most suitable ignition timing from its
memory and operates the power unit.
Thus ignition timing is controlled to yield the best en-
gine performance.
For more information, refer to Section 6E1.
SECTION 6F
IGNITION SYSTEM
WARNING:
For vehicles equipped with a Supplemental Inflatable Restraint Air Bag System:
Service on or around Air Bag System Components or Wiring must be performed only by an authorized
Suzuki dealer. Please observe all WARNINGS and SERVICE PRECAUTIONS in Section 9J under “On-
Vehicle Service” and the Air Bag System Component and Wiring Location view in Section 9J before
performing service on or around Air Bag System Components or Wiring. Failure to follow WARNINGS
could result in unintended air bag deployment or could render the air bag inoperative. Either of these
two conditions may result in severe injury.
SDM can maintain sufficient voltage to cause a deployment of air bags for up to 10 seconds after igni-
tion switch is turned to “LOCK” position, battery is disconnected or fuse powering SDM is removed.
Work must be started after 15 seconds from the time.
CONTENTS
GENERAL DESCRIPTION
1. Crankshaft pulley
2. Water pump pulley
A: To be advanced
B: To be retarded
1. Distributor flange bolt
2. Distributor
IGNITION SYSTEM 6F-9
IGNITION TIMING
NOTE:
Before starting engine, place transmission gear shift lever in
“Neutral” (shift selector lever to “P” range for A/T model), and
set parking brake.
INSPECTION AND ADJUSTMENT
1) Connect SUZUKI scan tool (1) to DLC (2) with ignition switch
OFF.
2) Start engine and warm it up to normal operating temperature.
3) Make sure that all of electrical loads except ignition are
switched off.
4) Check to be sure that idle speed is within specification.
(Refer to SECTION 6E1)
5) Set timing light to No.1 high-tension cord.
6) Fix ignition timing to initial one as follows:
Select “MISC” made on SUZUKI scan tool and fix ignition tim-
ing to initial one.
7) Using timing light, check that timing is within specification.
Initial ignition timing (Ignition timing fixed):
5 ±3 BTDC (at idle speed)
Ignition order: 1-3-2
Special Tool
(A): 09900-27301 or 09930-76420
8) If ignition timing is out of specification, loosen flange bolts, ad-
just timing by turning distributor assembly while engine is run-
ning, and then tighten bolts.
Tightening Torque
(a): 15 N
.m (1.5 kg-m, 11.0 lb-ft)
9) After tightening distributor flange bolts, recheck that ignition
timing is within specification.
10) After checking and/or adjusting Initial Ignition Timing, release
ignition timing fixation by SUZUKI scan tool.
11) With engine idling (ignition timing not fixed, idle switch ON and
car stopped), check that ignition timing is about 10 BTDC.
(Constant variation within a few degrees from 10 indicates no
abnormality but proves operation of electronic timing control
system.) Also, check that increasing engine speed advances
ignition timing.
If above check results are not satisfactory, check CTP switch,
test switch terminal circuit and ECM.