Suzuki Grand Vitara JB416 / JB420. Manual — part 130

1G-22 Fuel System:

Specifications

Tightening Torque Specifications

S5JB0A1707001

NOTE
The specified tightening torque is also described in the following.
“Fuel System Components”
“Fuel Hose Disconnecting and Reconnecting”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fastener Information in Section 0A”.

Special Tools and Equipment

Recommended Service Material

S5JB0A1708001

NOTE
Required service material is also described in the following.
“Fuel System Components”

Fastening part

Tightening torque

Note

N

⋅m

kgf-m

lb-ft

Fuel delivery pipe bolt

25

2.5

18.0

)

Fuel pressure regulator bolt

11

1.1

8.0

)

Fuel tank bolt

50

5.0

36.5

)

Fuel filler hose clamp

2

0.2

1.5

)

Fuel pump assembly bolt

11

1.1

8.0

)

Material

SUZUKI recommended product or Specification

Note

Oil

SUZUKI DI O RING OIL(500CC)

P/No.: 99000–25320

)

Fuel System: 1G-23

Special Tool

S5JB0A1708002

09912–58413

09912–58421

Fuel pressure gauge set

Checking tool set

)

This kit includes the
following items. 1. Tool body
and washer, 2. Body plug, 3.
Body attachment-1, 4.
Holder, 5. Return hose and
clamp, 6. Body attachment-2
and washer, 7. Hose
attachment-1, 8. Hose
attachment-2 )

09912–58442

09912–58490

Fuel pressure gauge

3-way joint & hose

This tool is included in fuel
pressure gauge set (09912-
58413). )

)

09917–47011

09919–47020

Vacuum pump gauge

Quick joint remover

)

)

09930–88530

SUZUKI scan tool

Injector test lead

—

)

This kit includes following
items. 1. Tech 2, 2. PCMCIA
card, 3. DLC cable, 4. SAE
16/19 adapter, 5. Cigarette
cable, 6. DLC loop back
adapter, 7. Battery power
cable, 8. RS232 cable, 9.
RS232 adapter, 10. RS232
loop back connector, 11.
Storage case, 12. )

1H-1 Ignition System:

Engine

Ignition System

General Description

Ignition System Construction

S5JB0A1801001

The ignition system is an electronic (distributor less)
ignition system. Especially a direct ignition system is
adopted for J20 engine. They consists of the parts as
described below.
• ECM

It detects the engine and vehicle conditions through
the signals from the sensors, determines the most
suitable ignition timing and time for electricity to flow
to the primary coil and sends a signal to the ignitor
(power unit) in the ignition coil assembly.

• Ignition coil assembly (including an ignitor and an

ignition coil)
The ignition coil assembly has a built-in ignitor which
turns ON and OFF the current flow to the primary coil
according to the signal from ECM. When the current
flow to the primary coil is turned OFF, a high voltage is
induced in the secondary coil.

• High-tension cords (for M16 engine) and spark

plugs

• CMP sensor (Camshaft position sensor) and CKP

sensor (Crankshaft position sensor)
Using signals from these sensors, ECM identifies the
specific cylinder whose piston is in the compression
stroke, detects the crank angle and adjusts initial
ignition timing automatically.

• TP sensor, ECT sensor, MAP sensor, MAF sensor,

IAT sensor, knock sensor, wheel speed sensor
(VSS) and other sensors / switches

For M16 engine, this ignition system does not have a
distributor, it has two ignition coil assemblies (one is for
No.1 and No.4 spark plugs and the other is for No.2 and
No.3 spark plugs). When an ignition signal is sent from
ECM to the ignitor in the ignition coil assembly for No.1
and No.4 spark plugs, a high voltage is induced in the
secondary coil and that passes through the high-tension
cords and causes No.1 and No.4 spark plugs to spark
simultaneously. Likewise, when an ignition signal is sent
to the ignitor in the other ignition coil assembly, No.2 and
No.3 spark plugs spark simultaneously.
For J20 engine, although ignition system does not have
a distributor and high-tension cords but each cylinder
has an ignition coil assembly (ignitor and ignition coil)
and the secondary voltage which occurred in the ignition
coil is sent to the spark plug directly. Also, the signal (s)
are sent from the CMP sensor to ECM so as to control
each ignition coil independently through the ignitor (in
ignition coil assembly).

Ignition System: 1H-2

Schematic and Routing Diagram

Ignition System Wiring Circuit Diagram

S5JB0A1802001

E23

C37

3

4

18

19

5

6

7

10

11

17

20

47

46

49

50

51

21

22

52

16

25

9

24

14
29

55

57

54 53

59

60

58

2

26

27

28

15
30

56

48

32

31

34

35

36

37

40

42

39 38

44

45

43

41

33

1

12

13

23

8

3

4

18

19

5

6

7

10

11

17

20

47

46

49

50

51

21

22

52

16

25

9

24

14
29

55

57

54 53

59

60

58

2

26

27

28

15
30

56

48

32

31

34

35

36

37

40

42

39 38

44

45

43

41

33

1

12

13

23

8

E23-60

E23-29

12V

5V

E23-1

E23-16

BLK/WHT

BLU/BLK

BLU/BLK

BLU/BLK

BLK/RED

BLK/RED

BLK/RED

BLK/YEL

WHT/GRN

BLK

BLU

BLK/ORN

1

2

11

C37-15

C37-29

C37-48

13

14

15

16

17

5

6

BLK/YEL

C37-51

5V

5V

C37-52

WHT/RED

WHT/BLU

5V

5V

BLK/WHT

BLK/WHT

BRN/BLK

BRN

C37-20

C37-21

BLK/ORN

BLK/ORN

C37-30

BLK/ORN

BLK/YEL

BLK/YEL

BLK/YEL

C37-58

[A]

[B]

3

4

7

8

9

10

12

E23-60

E23-29

12V

5V

E23-1

E23-16

BLK/WHT

BLU/BLK

BLU/BLK

BLU/BLK

BLK/RED

BLK/RED

BLK/RED

BLK/YEL

WHT/GRN

BLU

BLK/ORN

1

2

11

C37-15

C37-29

C37-48

13

14

15

16

17

5

6

BLK/YEL

5V

C37-52

WHT/RED

5V

5V

BLK/WHT

BRN/BLK

BRN

C37-20

C37-21

5V

5V

BLK/WHT

BRN/YEL

BRN/WHT

C37-18

C37-19

BLK/ORN

BLK/ORN

BLK/ORN

BLK/ORN

C37-30

BLK/ORN

BLK/YEL

BLK/YEL

BLK/YEL

C37-58

C37-51

C37-36

BLU

PNK

BLK

7

8

9

10

18

20

19

21

12

BLK

I5JB0A180001-02

[A]: For M16 engine

7. No.1 spark plug

15. “FI” fuse

[B]: For J20 engine

8. No.2 spark plug

16. Junction block

1. Ignition switch

9. No.3 spark plug

17. “IG COIL” fuse