gtsjr

Where is the Primary O2 sensor location on a 2000 Civic EX (D16Y8 Engine) Manual transmission?

Based on the image below is I expected to find the primary O2 sensor (#8 in the diagram).
But after taking off the heat shield I found it wasn't there. So where is it located?

And/ or does anybody know what page in the Civic Service Manual I can find the correct diagram showing it's location?

Thanks!

kyden

your diagram isn't correct for your motor anyways.

your primary o2 is at the end of the collector behind the motor. #40 in the picture.

B serious

iTrader: (1)

Looks like item 40 in the diagram above (not the one originally posted...thats for a DX/CX/LX model). There are 2 O2 sensors. The primary is before the cat.

chillerice

#40 looks like it.

kyden

hey guys i think it's #40.

gtsjr

Thanks guys.
Definitely #40 (or #41 in the diagram below)

In either diagram it's the Honda part #36531-P2P-A01

Damn $210 for the O2 Sensor!
Any decent aftermarket substitutions?
I just want to get the P0131 code to clear (fwiw I've already checked fuse #15 7.5 amp and it's fine)

Thanks again!

kyden

get a denso aftermarket replacement. they should be $40 or so.