For some unknown reason Ive been going through O2 sensors really quickly. I mean I can put one in and it lasts 2 weeks or so then it just dies and CEL comes on and starts to throw a code 1 for O2 content again. Anyone have any idea why I am going through these so fast? I dont have any left and they are fairly expensive to replace constantly, but if I dont the cost of gas will kill me.

Anyone have an idea on why this is going on? Something related to heat or something maybe? I tried to do a self diagnostic but was unable to assertain what the problem is. Any suggestions would be great.

Thanks
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What are the mods on your engine? My mpfi makes my engine run rich as hell too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast88std &raquo;</TD></TR><TR><TD CLASS="quote">What are the mods on your engine? My mpfi makes my engine run rich as hell too. </TD></TR></TABLE>

No mods. It just a stock D15B engine with a single wire O2 sensor. Its very mind boggling to me why this is happening.

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It's running too rich for some reason. Sorry I can't offer much more help that that. Is the car smoking at all?

 

u know antifreze will kill a O2 in bout 2 weeks. u sure ur head gasket is secure \ not bad?

 

YAY! Go code 1 people. mine just turned on 5 min ago. whoopedy do.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaKPX &raquo;</TD></TR><TR><TD CLASS="quote">YAY! Go code 1 people. mine just turned on 5 min ago. whoopedy do.</TD></TR></TABLE>

You wont be saying whoopedy do when you notice your gas mileage going down to about 8-10 MPG.

I can floor it from a stop and watch my gas gauge drop and not recover if it was just movement of gas in the tank away from the sensor.

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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxforum &raquo;</TD></TR><TR><TD CLASS="quote">
I can floor it from a stop and watch my gas gauge drop and not recover if it was just movement of gas in the tank away from the sensor.
CRX Forum</TD></TR></TABLE>

That happens to me too and I get ~25mpg.

As far as the problem goes, i agree with DieMaster, coolant kills o2 sensors. Possibly check into that.

 

Have you checked your timing?

I know is sounds strange, but overly retarded timeing can cause EGT's to go through the roof causing O2 sensor failure.

Had it happen on a friends car.

 

You sure its not a wiring issue

 

some great suggestions in here.

what brand of O2 are you using?

do they look funny when you take them out?

 

If you could post a pic of the failed o2 sensors it would be a great help

 

I tossed out all my O2 sensors that were dead except for one. Ill post a pic of that one when I get home tonight. Sorry for the delay in responces Ive been in limited dial up at home since I moved and cant get on the internet too much due to a 20 hour a month limit.

I was thinking about antifreeze screwing it up but then again if my gasket failed then wouldnt there be white or grey smoke coming from my exhaust system?

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If your headgasket failed, yes there would be smoke. It would also smell.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">If your headgasket failed, yes there would be smoke. It would also smell.
</TD></TR></TABLE>

Thats what I thought. There is no real smell other than gas, because it is running so rich it seems.

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