I have a 91 CRX with a B16A in it and today it started throwing Code #2 and Code #6 and I was wondering if anyone knew how to fix those or point me in the right direction?

 

I'm assuming you're using a PR3 ecu? Code 2 is bad O2 sensor...it looks like a spark plug sensor on your exhaust header...cheap replacement...
Code 6, coolant temp sensor, found on the cyl head under the top coolant hose...clean connections and reset ecu...or replace sensor itself.

 

Yeah I am using a PR3 and thanks for your help. Ill fix that tomorrow.

 

But off that top of my head I do not think there is a O2 sensor on the header. Unless its on the very bottom.

 

yeah, same thing...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow91ed8 &raquo;</TD></TR><TR><TD CLASS="quote">But off that top of my head I do not think there is a O2 sensor on the header. Unless its on the very bottom.</TD></TR></TABLE>

It has to be at the top, because its not a heated 02 sensor. Do you have two of them hooked up as well ?

 

It looks like there is no o2 sensor there.

 

I can see it, its behind the header.

 

Is it the one I circled in red?

 

Yes, you need to have two though, around that area.