Acura CSX. Instruction — page 96

*25

11-58

Fuel and Emissions Systems

Z

C36

IG1

A44

S-NET5V

A15

IMOFPR

A31

SCS

A40

BKSW

BLK/GRN

C101

2

MICU

V

PGM-FI MAIN
RELAY 2
(FUEL PUMP)

UNDER-DASH FUSE/RELAY BOX

F5

YEL

F8

PNK

F10

BRN

F11

BRN

F24

BRN

F25

LT GRN

F30

LT GRN

F31

WHT

F29

G2

ORN

G4

ORN

BRN

G16

WHT

G20

WHT

Q1

WHT

Q5

ORN

Q8

LT BLU

E9

GRN

E27

YEL

IG2

B

IG1

D1

WHT

D2

BLU

C3

ORN

C1

YEL

3

AD

S

T

AC

AB

O

ORN

AE

AA

Y

W

X

ST

6

4

1

R

IGNITION SWITCH

FUEL PUMP

P

2

4

BLK

E28

G601

IG1 HOT in ON (II)
and START (III)

YEL

G12

STARTER
CUT RELAY
(ST CUT)

22

UNDER-HOOD FUSE/RELAY BOX:

No. 21 DBW (THROTTLE

ACTUATOR CONTROL) (15 A)

No. 18 IG COIL (15 A)
No. 19 FI MAIN (15 A)
No. 11 FI SUB (15 A)
No. 15 OIL LVL (7.5 A)
No. 2 IG MAIN (50 A)
No. 23 BACK UP (10 A)
No. 12 STOP & HORN (15 A)
No. 1 MAIN FUSE (100 A)

UNDER-DASH FUSE/RELAY BOX:

No. 3 ALTERNATOR (10 A)
No. 2 FUEL PUMP (15 A)
No. 36 IG2 HAC (A/C) (10 A)
No. 10 METER (7.5 A)

08/08/21 14:13:53 61SNR030_110_0058

27

ECM Circuit Diagram (K20Z3 engine)

11-59

No. 1 INJECTOR

No. 2 INJECTOR

No. 3 INJECTOR

No. 4 INJECTOR

YEL/BLK

YEL/BLK

YEL/BLK

YEL/BLK

CKP SENSOR

YEL/BLK

YEL/BLK

BRN/YEL

BRN/YEL

3

1

2

3

1

2

YEL

BLU

RED

BRN

YEL/BLK

24P JUNCTION
CONNECTOR

CMP SENSOR B

A

BLU/YEL

GRN

C8

C6

C7

C5

C31

C32

INJ4

INJ2

INJ3

INJ1

CMPB

CKP

18

20

19

24

23

22

21

ECM

H

BLU/WHT

CMP SENSOR A

BLK/YEL

BRN/YEL

C41

CMPA

AA

5 V

3

1

2

1

2

1

2

1

2

1

2

08/08/21 14:13:54 61SNR030_110_0059

33

11-60

Fuel and Emissions Systems

C22

BLU/BLK

BRN/YEL

ROCKER ARM
OIL PRESSURE
SWITCH

MAP SENSOR

C13

C11

C14

YEL/RED

GRN/WHT

C23

BLU/WHT

C42

RED/BLU

KNOCK SENSOR

1

1

GRN/RED

RED/BLU

C106

VTC OIL CONTROL
SOLENOID VALVE

B34

GRN/YEL

VTPSW

VTS

VCC1

MAP

SG1

KS

VTC

BLU/WHT

2

1

G101

1

10

YEL/RED

GRN/WHT

GRN/RED

C

B

3

2

2

3

G101

BLU/BLK

ROCKER ARM
OIL CONTROL
SOLENOID

1

GRN/YEL

2

2

B18

YEL

VCC2

C43

BLK/WHT

NC

GRN/BLK

1

OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR

12 V

BLK

AB

BLK

08/08/21 14:13:54 61SNR030_110_0060

*26

11-61

B

IAT
SENSOR

MAF
SENSOR

1

B30

VG

RED/BLK

2

B32

VG

BLK/BLU

B33

SG2

GRN/BLK

BLK/YEL

3

GRN/BLK

4

RED/YEL

5

B31

IAT

RED/YEL

ECT SENSOR 1

GRN/BLK

2

RED/WHT

1

B23

ECT1

RED/WHT

D

B36

PG1

BLK

B1

PG2

BLK

C2

PGMETCS

BLK

G101

C40

LG1

BRN/YEL

C44

LG2

BRN/YEL

G101

C

F

G

E

18

19

20

BRN

BRN

12

10

9

11

BRN/YEL

C101

24P JUNCTION
CONNECTOR

AA

AB

21

BRN/YEL

BRN/YEL

6

5

08/08/21 14:15:27 61SNR030_110_0061

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