o2 Sensor?

dbisknot2ez24ge

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I am hoping to get some more details before taking any action on my problem. I posted a thread on 10-08-03 and am still wondering what I need to do.

The problem is when I turn the key and start the car...all the dummy lights come on, then they all go off like normal, then the check engine light immediately comes back on. Is this what translates into one short flash that is mentioned in some of the above responses? Or am i missing somthing and need to be looking for the codes somewhere else? According to theECU Code list, one short flash means the primary o2 sensor is bad. But the confusing part to me is what am I looking for to flash the codes? I have been going on just the check engine light itself flashin once, but I don't think that is right.

The check engine light is not covered under factory warranty. I found this out the hard way about 1 year ago when the check engine light came on....I brought my car to a honda dealer, they charged my $100 dollars to reset the switch and tell me that I was overdue for an oil change. Most expensive oil change ever.

The factory warranty did not cover any part of that, nor did the extended warranty which i purchased with the car that has since expired.

If all this is true, it is possible that the sensor was damaged during installation of the new exhaust system, or it is malfunctioning for a different reason related to the new exhaust. This is what i understand to be correct. Let me know what you guys think.
 

Civic Type Sev

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By new exhaust do you mean a complete high flow exhaust? If you changed the cat for a high flow one that might be the reason for the check engine light. If so then the only fix is to get a O2 Simulator to replace the secondary O2 sensor.
To check the CEL you need to jump the service connector near the ecu. For more information on doing this check out this web page www.c-speedracing.com/faq/06.php
Hope this helps you figure out the real problem and how to fix it.
 


dbisknot2ez24ge

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Originally posted by Civic Type Sev
By new exhaust do you mean a complete high flow exhaust? If you changed the cat for a high flow one that might be the reason for the check engine light. If so then the only fix is to get a O2 Simulator to replace the secondary O2 sensor.
To check the CEL you need to jump the service connector near the ecu. For more information on doing this check out this web page www.c-speedracing.com/faq/06.php
Hope this helps you figure out the real problem and how to fix it.
Yes, by new exhaust i mean everything from the muffler, all the up to the cat. I have not changed out the cat yet, on the count of the check engine light coming on. As soon as I fix whatever is causing the light to come on, I plan to take out the cat. Where can I get a good deal on an o2 simulater?
 


dbisknot2ez24ge

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i was unable to locate the green cover that houses the blue connector that has two wires SEE LINK . i even took the glove box out and searched under the dash of the entire passenger side!!!!
 

KennyC

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Dont start the car , jus click ur key to right b4 u would have to start it, then count the flashes. My cel is on too, wit one flash. Jus gotta change the 02 sensor. I wouldnt b in too much of a rush unless u gotta smog ur car cause it didnt put my v-tec into safe mode.
 


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