PR3/ PWO ECU (pre-obd) pin out
‘A’ connector (White)
| N/C |
A15
Yel/Blk
+12V
Switched IGP1 |
A13
Yel/Blk
+12V
Switched IGP1 |
A11
Blu/Yel
Air control value
EACV (IAC) |
GAP |
A7
Yel
Injector
INJ4 |
A5
Lt Blu
Injector
INJ3 |
A3
Red
Injector
INJ2 |
A1
Brown
Injector
INJ1 |
A18
Blk/Red
GND
LG1 |
A16
Bro/Blk
GND
LG1 |
A14
Grn/Blk
Fuel pump
FLR |
A12
Grn/Blk
Fuel pump
FLR |
A10
Green
Purge valve
PCS |
A8
Green
VTEC Spool
VTS |
N/C |
A4
Black
GND
PG1 |
A2
Black
GND
PG1 |
‘B’ connector
B19
White
Knock Sensor |
B17
White
Ignitor
ICM |
B15
White
Ignitor
ICM |
B13
Blu/Wht
+12V at start
STS |
B11
Black
Rear
Demister |
N/C |
N/C |
B5
Blu/Blk
VTEC pressure
VTP |
B3
Yellow
A/C Clutch
ACC |
B1
Wht/Grn
+12V always
VBU |
B20
Brown
Adjust timing |
N/C |
B16
Yel/Red
Speed sensor
VSS |
B14
Blue
Alternator
ALTC |
B12
White
Dist
Crank- |
B10
White
Dist
Crank+ |
B8
Blue/Red
A/C switch
ACS |
B6
Grn/Orge
Check light
MIL |
|
|
‘C’ connector
C15
Yel/Red
MAP+
VCC1 |
C13
Yel/Whte
TPS+
VCC2 |
C11
White
MAP |
C9
Red/Wht
P/S
Pressure? |
C7
Red/Blue
TPS |
C5
Red/Yel
Air Temp |
C3
Orange/Blue
Dist TDC+ |
C1
Blue/Grn
Dist CYL+ |
C16
White
O2 #1 |
C14
Grn/Wht
MAP-
SG1 |
C12
Grn/Wht
Sensor
GND SG2 |
C10
Grn/Wht
Brake Lt |
C8
Red/Blue
O2 #2 |
C6
Red/Wht
Water T |
C4
Wht/Blu
Dist TDC- |
C2
Blu/Yel
Dist CYL- |
|
pr3_a
| A01 |
BRN |
INJ1 |
fuel injector control # 1 |
| A02 |
BLK |
PG1 |
Ground |
| A03 |
RED |
INJ2 |
fuel injector control # 2 |
| A04 |
BLK |
PG2 |
Ground |
| A05 |
LT BLU |
INJ3 |
fuel injector control # 3 |
| A06 |
GRN |
|
purge cut-off solinoid valve |
| A07 |
YEL |
INJ4 |
fuel injector control # 4 |
| A08 |
|
VTS |
VTEC solenoid |
| A09 |
|
|
|
| A10 |
|
|
Pressure Regulator Cutoff Soleno |
| A11 |
BLU/YEL |
IACV |
from electronic air control valv |
| A12 |
GRN/BLK |
FLR1 |
fuel pump control |
| A13 |
YEL/BLK |
IGP1 |
power Input |
| A14 |
GRN/BLK |
FLR2 |
fuel pump control |
| A15 |
YEL/BLK |
IGP2 |
power Input |
| A16 |
BRN/BLK |
|
ground |
| A17 |
|
|
|
| A18 |
BLK/RED |
|
ground |
| B01 |
WHT/GRN |
VBP |
Battery Backup |
| B02 |
|
|
|
| B03 |
YEL |
ACC |
a/c compressor clutch relay cont |
| B04 |
|
FANC |
|
| B05 |
WHT/YEL |
VTM |
VTEC pressure switch |
| B06 |
GRN/ORN |
MIL |
check engine warning light |
| B07 |
|
|
|
| B08 |
YEL/GRN |
ACS |
a/c on input |
| B09 |
|
|
|
| B10 |
ORN |
CYP P |
crank sensor (1) |
| B11 |
|
|
Fuse Box |
| B12 |
WHT ? |
CYP M |
crank sensor (2) |
| B13 |
BLU/WHT |
|
starting input |
| B14 |
BLU |
ALT |
alternator output signal |
| B15 |
WHT ? |
|
ignition output signal |
| B16 |
YEL/RED |
VSS |
VSS |
| B17 |
WHT ? |
|
ignition output signal |
| B18 |
|
|
|
| B19 |
|
KS |
Knock sensor |
| B20 |
BRN |
SCS |
ignition timing adjusting connec |
| C01 |
BLU/GRN |
CKP P |
CYL sensor (1) |
| C02 |
BLU/YEL |
CKP M |
CYL sensor (2) |
| C03 |
ORN/BLU |
TDC P |
TDC sensor (1) |
| C04 |
WHT/BLU |
TDC M |
TDC sensor (2) |
| C05 |
RED/YEL |
IAT |
intake air temperature sensor |
| C06 |
RED/WHT ? |
ECT |
coolant temperature sensor |
| C07 |
RED/BLU |
TPS |
throttle angle sensor |
| C08 |
|
O2S |
Dual O2 Sensor (JDM) |
| C09 |
RED/WHT ? |
PA |
atomosphere pressure sensor inpu |
| C10 |
GRN/WHT ? |
BKSW |
brake light switch |
| C11 |
GRN/WHT ? |
MIL |
ground |
| C12 |
GRN/WHT ? |
SG2 |
TPS GND |
| C13 |
YEL/WHT |
VCC1 |
TPS 5V |
| C14 |
|
SG1 |
MAP GND |
| C15 |
YEL/RED |
VCC2 |
MAP 5V |
| C16 |
WHT |
O2S |
oxygen sensor |
|
 |
|
|
|
|
|
