ECU Connectors

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Connectors

 

Shown from the wire side of the ECU:

 

ecuconnectors-rev

 

Shown from the ECU side of the connector:

 

ecuconnectors

 

Pin Description

 

IGP1

A25

Power from main relay

IGP2

B1

Power from main relay

PG1

A23

Ground

PG2

A24

Ground

VBU

D1

Voltage back up

LG1

A26

Logic ground

LG2

B2

Logic ground

 

 

 

CYP P

B11

Distributor cylinder sensor

CYP M

B12

Distributor cylinder sensor

TDC P

B13

Distributor TDC sensor

TDC M

B14

Distributor TDC sensor

CKP P

B15

Distributor crank sensor

CKP M

B16

Distributor crank sensor

 

 

 

INJ1

A1

Injector #1

INJ2

A3

Injector #2

INJ3

A5

Injector #3

INJ4

A2

Injector #4

 

 

 

VCC1

D19

MAP 5V

MAP

D17

Manifold pressure sensor

SG1

D21

MAP logic ground

VCC2

D20

TPS 5V

TPS

D11

Throttle position sensor

SG2

D22

TPS ground

IAT

D15

Air temperature sensor

ECT

D13

Water temperature sensor

VSS

B10

Speed sensor

ELD

D10

Electrical load detector

EGRL

D12

EGR lift

-

B6

Analog input #2

 

 

 

STS

B9

Start Signal

PSP

B8

Power steering pressure

BKSW

D2

Brake Switch

ACS

B5

AC Switch

VTP

D6

VTEC Pressure Switch

SCS

D4

Service Connector

 

 

 

FLR1

A7/A8

Fuel pump relay

ICM

A21/A22

Igniter output

IACV

A9

Idle valve

ACC

A15

AC Clutch

FANC

A12

Radiator fan control

MIL

A13

Check engine light

IAB

A17

Secondary intake runners

VTS

A4

VTEC solenoid

EGR

A11

EGR

O2HTC

A6

O2 sensor heater

EVAP

A20

Purge valve

ALTC

A16

Alternator

-

A10

Nitrous Output

 

 

 

TXRX

D7

Serial comms

 

OBDII ECU Inputs/Outputs

 

Function

OBDI

OBDIIA

OBDIIB

ACS

B5

C5

A27

Analog #2

B6

-

-

PSP

B8

C16

A26

SCS

D4

C7

A10

BKSW

D2

D5

A32

VTP

D6

C15

C10

EGRL

D12

-

-

Boost Control

A11

A7

B7

ACC

A15

A17

A17

PCS

A20

A15

A6

IAB

A17

A9

B32*

FANC

A12

A27

A20

ALTC

A16

A19

C2

ELD

D10

D16

A30

Extra Output

A10

C21

A10*

* cannot be used.