Complete guide to change a 1 wire o2 sensor into a 4 wire o2 sensor, 1 wire to 4 wire o2 conversion, wire knock sensor, wire vtec from harness to plug, only 1992 civic civics is prewired vtec from shock tower clip to ecu, the 4 wire o2 is prewired in all 1992-1995 civics from shock tower clip to ecu.

ENJOY!



Disclaimer: The author is not responsible for any mistakes
that may occur during installation