90civic-racer

Does anyone know where I can get a ecu pinout for a 90 civic standard? I am swaping in a b18a and need the pinout so I can add the wires like I need to.

VTECVillain

I thought I'd be nice since I was just looking at it before reading your post.

PLUG 451 (17 PIN WHITE)

A1 - YEL - Auxiliary Fuel Injector Control
A2 - YEL - Auxiliary Fuel Injector Control
A3 - RED - Main Fuel Injector Control
A4 - RED - Main Fuel Injector Control
A5 - BLU/YEL - Electronic Air Control Valve Control (EAVC)
A6 - YEL/BLK - Power Input
A7 - YEL/BLK - Power Input
A8 -
A9 - BLK - Ground
A10 - BLK - Ground
A11 - GRN - Purge Cut-off Solenoid Valve Control
A12 - YEL - Lock-up Control Solenoid Valve Control
A13 - RED - EGR Solenoid Valve Control
A14 - GRN/BLK - Fuel Pump Control
A15 - GRN/BLK - Fuel Pump Control
A16 - BRN/BLK - Ground
A17 - BLK/RED - Ground

PLUG 452 (20 PIN BLACK)

B1 - WHT/GRN - Battery Input
B2 - YEL - A/C Compressor Clutch Relay Control
B3 - WHT/YEL - Alternator Output Signal
B4 - GRN - Park/Neutral Input
B5 -
B6 - GRN/BLK - D4 Input
B7 - BLU/WHT - Starting Input
B8 - WHT - IGNITION Input Signal
B9 - WHT - IGNITION Input Signal
B10 - GRN/RED - Electric Load Detector Unit Input
B11 - ORG - Tandem Valve Control Solenoid Valve Control
B12 - YEL/GRN - A/C On Input
B13 - GRN/ORG - Check Engine Warning Light Control
B14 - BLU/RED - Radiator Fan And Condenser
B15 -
B16 -
B17 - BLU - Alternator RF Signal
B18 - YEL/RED - Speed Pulse Input
B19 -
B20 - BRN - Ignition Timing Adjusting Connector Input

PLUG 453 (16 PIN BLACK)

C1 - ORG -Crank Sensor Input
C2 - ORG/BLU - TDC Sensor Input
C3 - RED/YEL - Intake Air Temp Sensor Input
C4 - RED/BLU - Throttle Angle Sensor Input
C5 - RED/WHT - Atmosphere Pressure Sensor
C6 - GRN/WHT - Ground
C7 - YEL/WHT - 5 Volts + Reference
C8 - YEL/RED - 5 Volts + Reference
C9 - WHT -Crank Sensor Input
C10 - WHT/BLU - TDC Sensor Input
C11 - RED/WHT - Coolant Temp Sensor Input
C12 - YEL - EGR Valve Sensor Input (CA Only)
C13 - GRN/WHT - Brake Light Switch Input
C14 - GRN/WHT - Ground For Sensors
C15 - WHT - MAP Input
C16 - WHT - O2 Sensor

90civic-racer

THanks man you dont know how long I have been looking for that.