Honda D Series Forum banner

1 - 6 of 6 Posts

·
Registered
Joined
·
37 Posts
Discussion Starter #1
can i depin my primary and use the secondary o2 clip and pin in the 4 wires needed and plug and play my secondary 4 wire to make it a primary
 

·
Premium Member
Joined
·
5,819 Posts
So you want to use the 2nd O2 sensor as your primary o2 sensor but your primary O2 is 7 wires and you want to swap the plugs to make it work?

What year is the chassis and what ecu? All so can you post pics of both plugs for the O2 sensors?
 

·
Registered
Joined
·
3,314 Posts
You are better off getting a new 4 wire o2, that way you have no issues with fuel mileage. Unless the secondary o2 is fairly new?
 

·
Registered
ej8
Joined
·
6,365 Posts
yea and 2000 civic hx obd2a running a chipped p28
Pull up a ecu p8n out of the 2 ecu and compare the wires.
There was a write up on this.
The best thing to do is to cut your 2nd o2 harness off and tape up the cut wires.

Then find out which ecu pins are different on the hx and wire it in.
Or to make it easier just add all new wires for the 4 wire o2 to the ecu jumper harness. Less hacking on the oem harness.
 
1 - 6 of 6 Posts
Top