Join Date: Feb 2011
Thanked 0 Times in 0 Posts
O2 Sensor Changed, Check Engine Light Still on...? Will it go off?
My mothers 2004 Accord had its Check Engine Light come on. She tried the gas cap tightening and that did not work. I had her take it to Autozone and they read the code on the computer. O2 sensor. She bought the Bosch O2 sensor that I changed yesterday.
That was not as easy as I thought.. Jacked up the car and had to remove the pipe from manifold. Not enough room to get socket on 02 sensor. Removed bolts from the exhaust mount and dropped down the front end of entire exhaust. Kept exhaust propped up about 5 inches because Cat sensor was still wired in and at its length limit. Then, vise gripped the flange end while I turned the special socket to remove the O2 sensor. That's tough because of the flexible joint on the pipe, you need to anchor flange before loosening 02 sensor.
Anyway, 02 sensor is in. Drove the car about 25 miles and the light is still on.
Will the light eventually go off by itself? (If the O2 sensor was the problem and is now fixed?) Or, do I have to somehow reset the check engine light? Autozone did state that they would not turn off the light.