My girls cel came on and went off every couple of days for the last 2 weeks or so. So i pulled the code and it blinked a 63, Im not sure what the sensor circuit is. Is it just talking about the wires on the 02 sensor? or the wiring with the car? Also i waited and let it blink throught a few times to see if it would spit another code and it gave me a 64 ?
Is there a code 64 or did i just count wrong? I was goin to recheck again when i get off work. Any help would be great.

 

Oh its a 96 dx hatchback

 

Her sensor is taking a dump. Buy a new one.

 

I just dealt with this one. for $2 in resistors I fixed the problem. just put 10-40 ohm resistor across the black wires

 

sorry wrong code that was for 41

 

you must have counted wrong. there is a 63 and 65.
replace the secondary O2 sensor and either one will go away.