Very simple, if both the primary and secondary O2 sensors are indeed the same (I swapped them in my car so I knew they are the same plug at least), why does the secondary go for $176 at Majestic Honda while the primary sells for only $161? Are they indeed the very same sensors or is there a difference?

BTW as for my idle issues stemming from a bad O2, I swapped O2's on my car (primary to secondary) and although it worked for a few hours, my car has returned to it's horrendous idle, stalling evey now and again when it wants to, idling at just over 300rpm. Funny thing is, no CEL this time.. I'm gonna go ahead and swap to a new O2 and pray that solves my idling issues before I have to take it to SFP to check the Hondata

EDIT: BTW if anybody comes up with a better price for an OEM O2 sensor than $161, let me know!


[Modified by VTC_CiViC, 12:12 PM 7/8/2002]

 

just get a denso sensor from http://www.thepartsbin.com

same thing, just not in a honda box

 

secondary probably has the grommet to seal the hole in the bottom of the car.

 

$98.85!! Thanks dustin!

 

For very good prices in O2 sensors, go to http://www.oxygensensors.com