Are the primary and secondary o2 sensors interchangleable, can the primary go in place of the seconardy and vice versa

 

I have a 96 civic ex. The primary O2 and the secondary look different on the outside, but it appears to be the same component. The secondary has a jacket and a rubber plug to protect it from the cat heat. It has a four wire connector similar to the primary O2. The connectors are the same as well.

I spent the weekend testing my primary O2, which it was good. I could not remove the O2 sensor from the Cat Converter. It was too tight a fit to remove it. To test the secondary O2, I guess I will have to use a backprobe to the ECM since I dont want to remove or mess with the cat converter.

Why are you swapping the O2 sensors?

 

well i got some **** gas, and it fried my plugs they were a red color about a month ago, and about a month ago i gutted my cat and got an O2 sim. and and i keep throwing the CEL, and i put on a header about a week ago and the guy i bought the header from gave my his primary O2 sensor witht he header and when i pulled my O2 sensor out of my exhaust manifold i noticed my O2 senor was like red liek the plugs so im wonderiong if the code im thorwing is for the primary, i suppose ill go to autozone one of these days and have them read the codes, but i work 60 hours a week, makes it tuff. not that has anyhting to do with primary and secondary, but for for probs maybe ill try cleaning the primary o2 sensor?


Modified by Honda_project98 at 10:34 AM 5/31/2005

 

Dont attempt to clean the sensor.
Check the code yourself...
http://www.hstuners.com/forums...23007

Yes o2's are interchangeable

 

I agree, dont clean it. If the prob is not your sensor, then you will be buying one.

I got a Actron tool to test lots of sensors, great tool to have.

See what your CEL is reading before u mess with sensors.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg &raquo;</TD></TR><TR><TD CLASS="quote">Yes o2's are interchangeable</TD></TR></TABLE>

yes they are, harness and all. i checked this out before to see.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by arielb1 &raquo;</TD></TR><TR><TD CLASS="quote">I got a Actron tool to test lots of sensors, great tool to have.</TD></TR></TABLE>

where can we find one of those tools??