Sooo as it turns out, my primary o2 sensor is bad. i lost 50 miles per tank, and my car is running pretty shisty. I call up advance auto parts, they want $700+ for it, auto zone wants around $500 and napa is about the same, the dealer only wants $450. the problem is, im on a limited budget and i cant afford to pay that much. im assuming that other people on this forum have had this problem so i was just wondering where i could get one cheap. Ive tried 3 diff junkyards in the area and none of them carry any. i did a quick search of the forums and nothing turned up. for the record i drive a 1997 civic HX. thanks

ebay. You can find OEM Denso 02 sensors for around $50-100.

I Suggest Going Oem From The Dealer...those Aftermarket Ones Aren't The Best...kinda Pricy For An O2...but Then Again I Get Parts For Cost Not List

i bought my brand new universal denso for $34.99. still working for being used over 2 years.

they work...but from experience...oem replacement parts are the best for your car...

Denso is high quality, no need to worry about it.

Denso is high quality, no need to worry about it.

i second that.

i appreciate the advice. damn 5 wire sensors cost an arm and a leg. a 4 wire costs about $200 less

search his ebay store.

http://stores.ebay.com/AutoPartsWarehouse2000_W0QQssPageNameZl2QQtZkm