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Anyone know anything specific about Honda's (2002 - CR-V EX 2.4L) getting either of these two codes.  We had these two codes appear approximately a week after the battery had gone 'dead' and was replaced.
These codes seem to indicate O2 Sensor related, which are approximately $300 each.  Before I go out and buy/replace these, just wanted to be sure that there wasn't something SPECIAL related to the Honda that might just need resetting or whatever.  Just thought it strange these 2 codes appear within a week after battery had died and been replaced.
Have already cleared codes, but they re-appear immediately after engine is re-cranked.  Any help would be appreciated...thanks  

autoquest:
Anyone know anything specific about Honda's (2002 - CR-V EX 2.4L) getting either of these two codes.  We had these two codes appear approximately a week after the battery had gone 'dead' and was replaced.
These codes seem to indicate O2 Sensor related, which are approximately $300 each.  Before I go out and buy/replace these, just wanted to be sure that there wasn't something SPECIAL related to the Honda that might just need resetting or whatever.  Just thought it strange these 2 codes appear within a week after battery had died and been replaced.
Have already cleared codes, but they re-appear immediately after engine is re-cranked.  Any help would be appreciated...thanks

The first thing that you need to realize is that just because you have DTC's does not mean you replace parts.  There are no codes that state "part X is bad", only codes that direct you to a circuit or system to start your diagnosis.

P1166 pertains to the upstream O2 sensor heater circuit.  P1167 pertains to the upstream O2 sensor output.  No, I don't recall the verbiage off the top of my head.  None the less, that could mean that you have a bad upstream sensor, or it could be as simple as two (or more) of the four wires being chaffed together, wires broken, poor connections (most likely dirt/corrosion at the four pin connector), simply a bad ground, etc.

The only way to know for sure is to have someone with a proper scan tool (not a generic code reader) and the knowledge to use it to check the datastream and then probably follow up with a pinout chart and a DVOM.  Proper diagnostics may seem expensive but in the long run it's for cheaper to isolate the problem and repair it once than it is to mindlessly replace parts until the problem is accidentally fixed.  Just ask the customers of my competitors.

Almost forgot.  This would have nothing to do with a dead battery.  Just coincidence.  Also, the fact that they appear right after being cleared would probably indicate a wiring problem.  

To vwhobo:  Thanks for your reply. This is my friend's Honda. I have a grease pit in my shop and we plan to take a look at the wiring and sensors tomorrow(mon) evening.  Will let you know what we find out if anything significant.  When I told him what your reply was about the immediate DTC code after clearing and that it may very well be a wiring issue, he said that he's had a couple of occassions whereby a tree limb or two have gotten caught under the car and finally drug out the rear.
Who knows, it may very well be a loose or torn wire to one of the sensors.   If we don't find any type of wiring concerns, I may try to perform some OHM testing on the sensors, if I can find the right technical info somewhere.  Thanks again for your replay.  

autoquest:
To vwhobo:  Thanks for your reply. This is my friend's Honda. I have a grease pit in my shop and we plan to take a look at the wiring and sensors tomorrow(mon) evening.  Will let you know what we find out if anything significant.  When I told him what your reply was about the immediate DTC code after clearing and that it may very well be a wiring issue, he said that he's had a couple of occassions whereby a tree limb or two have gotten caught under the car and finally drug out the rear.
Who knows, it may very well be a loose or torn wire to one of the sensors.   If we don't find any type of wiring concerns, I may try to perform some OHM testing on the sensors, if I can find the right technical info somewhere.  Thanks again for your replay.

Good job.  One reason why we put so much effort into playing question and answer with customers.  You never know when some seemingly unrelated occurance can be the cause of a problem.  I hope the visual inspection works out for you.  Good luck.  

I have aHonda CR-V 2002 and took it to Delare due to defective A/C. they fixed it for me and charged me small amount because of good will warranty. few days after leaving dealer the check engine light appeared and autozone hooked up scanner and showed tyhe code P1166.
does anyone knows if this has to do with dealer changing the air compressor, evaporator and few other parts related to A/C unit? thanks if you can give me hints what to do next.