Ok, so I swapped a d17a2 (vtec) into my dx chassis. Little did I realize that the secondary o2 sensors are on different ecu connectors. On the dx chassis, the 2d o2 sensor is on connector A. On the ex, it is connector E. The wiring harness for connector E on my chassis doesn't lead to the engine bay, everything is on A and B. Apparently, at some point, connector E on the ex leads out to the engine bay through a fuse under the dash to reach the secondary sensor.

My dilemma: I am throwing a CEL for sensor heater wire malfunction. I have triple checked my wiring based off of this thread:
https://honda-tech.com/zerothread?id=1314886
I am still throwing this code. I did clear it two or three times with the scan tool but it still comes back.

Is the ecu that sensitive that it would know there wasn't a fuse inline? That doesn't sound right to me but it's all I can think of. I've also checked all of the troubleshooting steps in the manual and as far as voltage and continuity, everything seems to check out. Any ideas?