Complete OBD1 B18C1 into Civic VX Wiring instructions.
Thread Starter
Senior Member
Joined: May 2002
Posts: 162
Likes: 0
Complete OBD1 B18C1 into Civic VX Wiring instructions.
This thread is to end all of the confusion about wiring a USDM b18C1 into a VX civic using the VX harness.
WIRING A 1995 OBD1 B18C1 INTO A 1994 VX CIVIC USING A USDM P72 ECU
LOCATE THE 6 PIN PLUG BELOW ON THE PASS. SIDE VX SHOCK TOWER
The wires are in the following order:
ORG/BLU BLU/GRN WHT/BLK
BLU/YEL WHT/BLU YEL/WHT
REMOVE THE FOLLOWING WIRES FROM THE 6 PIN VX PLUG
ORG/BLU - O2 SENSOR
BLU/YEL - KNOCK SENSOR
LOCATE THE 10 PIN PLUG PICTURED BELOW THAT IS ON THE VX SHOCK TOWER
The wires are in the following order:
BRN/BLK EMPTY BLK/RED
ORG WHT ORG/BLU WHT/BLU
BLU/GRN BLU/YEL EMPTY
REMOVE THE RUBBER PLUG FROM THE TWO UNUSED SOCKETS
INSERT THE ORG/BLU (O2 SENSOR) WIRE INTO THE SOCKET BETWEEN THE BRN/BLK WIRE AND THE BLK/RED WIRE. (TOP CENTER SOCKET IN PIC)
INSERT THE BLU/YEL (KNOCK SENSOR) WIRE INTO THE SOCKET NEXT TO THE OTHER BLU/YEL WIRE. (BOTTOM RIGHT SOCKET IN PIC)
NOTE - IF YOU ARE USING A CHIPPED P28 ECU YOU WILL NOT NEED TO WORRY ABOUT WIRING UP THE KNOCK SENSOR
YOUR NEXT STEP IS TO MOVE THE RED WIRE ON YOUR ECU HARNESS FROM A20 TO A17 FOR YOUR SECONDARY RUNNERS FOR YOUR INTAKE MANIFOLD. THEY SHOULD OPERATE AS SEEN HERE .
ALL YOU HAVE LEFT YOU DO IS PLUG IN YOUR ECU AND PLUG THE 3 VX SHOCK TOWER HARNESSES INTO THE GSR MOTOR HARNESSES.
If you have any questions PM me.
WIRING A 1995 OBD1 B18C1 INTO A 1994 VX CIVIC USING A USDM P72 ECU
LOCATE THE 6 PIN PLUG BELOW ON THE PASS. SIDE VX SHOCK TOWER
The wires are in the following order:
ORG/BLU BLU/GRN WHT/BLK
BLU/YEL WHT/BLU YEL/WHT
REMOVE THE FOLLOWING WIRES FROM THE 6 PIN VX PLUG
ORG/BLU - O2 SENSOR
BLU/YEL - KNOCK SENSOR
LOCATE THE 10 PIN PLUG PICTURED BELOW THAT IS ON THE VX SHOCK TOWER
The wires are in the following order:
BRN/BLK EMPTY BLK/RED
ORG WHT ORG/BLU WHT/BLU
BLU/GRN BLU/YEL EMPTY
REMOVE THE RUBBER PLUG FROM THE TWO UNUSED SOCKETS
INSERT THE ORG/BLU (O2 SENSOR) WIRE INTO THE SOCKET BETWEEN THE BRN/BLK WIRE AND THE BLK/RED WIRE. (TOP CENTER SOCKET IN PIC)
INSERT THE BLU/YEL (KNOCK SENSOR) WIRE INTO THE SOCKET NEXT TO THE OTHER BLU/YEL WIRE. (BOTTOM RIGHT SOCKET IN PIC)
NOTE - IF YOU ARE USING A CHIPPED P28 ECU YOU WILL NOT NEED TO WORRY ABOUT WIRING UP THE KNOCK SENSOR
YOUR NEXT STEP IS TO MOVE THE RED WIRE ON YOUR ECU HARNESS FROM A20 TO A17 FOR YOUR SECONDARY RUNNERS FOR YOUR INTAKE MANIFOLD. THEY SHOULD OPERATE AS SEEN HERE .
ALL YOU HAVE LEFT YOU DO IS PLUG IN YOUR ECU AND PLUG THE 3 VX SHOCK TOWER HARNESSES INTO THE GSR MOTOR HARNESSES.
If you have any questions PM me.