Check Engine(CEL light) oxygen sensor
 

Started my 99 Civic LX this morning and CEL light came on and stayed on ,took car to Advance Auto and had em diagnose it,,test showed bad oxygen sensor bank 1 sensor 1.He showed part as costing around 200 bucks.My thoughts are to stay away from dealer ,buy the part and have a local honda mechanic do the job.Any thoughts on what should be reasonable cost for sensor replacement.
thanks for any thoughts or suggestions

welcome to the forum. here a couple of places to check on prices,
hondaautomotiveparts.com MagAutoParts ( member on this forum) Just a point to remember, many forums I have read state that they have put in a denso sensor after market. Identical to Hondas part. but within a day to 3mos the cel will illuminate. Your choice.

dont make the mistake
 

wuts up fella i think i can help u out before u go buying an o2 sensor make sure thats the problem i just made the mistake of buying an o2 sensor for 395.99 for my civic and when i went to put it in i took the heat shield off and when i did i noticed a small crack on my exhaust manifold that was reading a lean mixture