92 eg hatch with a b18b1 swap. Purchased the car with a blown b18b1, swapped in a 94 b18b1. The harness is hacked to death, so I am getting an unhacked cx harness. I've read every thread i could find, and many say they are plug n play, jusst want to make sure this is fine to do before ordering my new harness. The new engine is obd1, ecu is p75 obd1, and I am getting an obd1 harness. Does any wiring need changed/extended? The car currently has a one wire o2 sensor, anything need changed for that? Thank you for the help.

 

I feel like there was a certain year of CX uses a single wire o2 sensor. Check on that, if it is a one wire o2 you will need to fix that.

I believe the VX used a 5 fire o2 sensor.

Otherwise, I think it should be plug and play.

 

 

I think the B18B1 uses the 4 wire O2 (Heated Narrow Band).

If I recall the B18B1 came from the CRV, but I don't remember the years. You might be able to locate digital scaned versions of the CRV helm's manuals and compare it to the 92-95 helm's manual.

 

 

No it didn't

 

What CEL is being thrown? Yes, you'll likely need to run a 4-wire sensor to avoid getting a CEL for o2 heater circuit.