I'm getting a "Oxygen Content" code from my 91 Accord EX, 1 blinking light, and was wondering if that means the O2 sensor is bad. Or could it be something else. What is the reliability of aftermarket sensors compared to OEM? And where is a good place to order off the net?

 

Pull your diagnostic code, under the passenger side behind the kick panel I believe there is a little blue plug, jumper that plug and count the blinks of your check engine light, there will be a few short blinks pause then long blinks, count them about 3 times to make sure you're getting an accurate reading and let us know what it is.... As far as ordering off the net we've got a great vendor (scroll down on the right hand side to the new vendor box) and look at Honda parts warehouse, if you call them or just lookup the part they've got good prices