Technical Details

Use these as a reference for K Series engine swaps (K20, K24), building your own harness, or diagnosing issues. Provided for informational purposes only. C101 Connector ECU Connectors

This article explores the utilization of ECU pin locations and wire colors in M/T '92-95 Civic, '92-95 Integra, and '92-95 Prelude VTEC and NON-VTEC vehicles. The focus is on OBD1 plug configurations, particularly the common male connectors (A, B, and D) for Honda OBD1 ECUs. The accompanying image illustrates a 4-plug OBD1 connector, confirming their existence in JDM AUTO 92-95 Civic, Integra, and Preludes. Unfortunately, pin schematics for the JDM 4-plug OBD1 ECU are unavailable. However, it is noted that connectors A, B, and D should theoretically share the same pin locations as a 5spd 3-plug OBD1 ECU. The pin-out...