Oxygen Sensor Problem

http://Isuzu-Trooper.autoboardz.com/2000-Accord-SE-O2-sensor-problem-ftopict189125.html (2000 Accord SE O2 sensor problem)
I am trying to solve an oxygen sensor problem with my 2000 Honda Accord with a 2.3 liter ULEV motor. A couple of months ago, the check engine light came on, and along with it the idle got a little rough, and gas mileage is down about 10 percent. I had the computer scanned at Autozone, and they..
« Had you gone to your dealer in the first place you would not get the runaround from all the people who think they know your Honda, but only guess at what they're doing. They dealer knows your Honda,.. »
« there was a bulletin on this problem. not a recall, so if it's not a warranty issue. call the dealer and ask about it. they were replacing injectors and ECU's. Chip »
« Usually, a 4-pin universal O2 Denso heater circuit should measure about 4-Ohm. That could explain why the ECU is measuring an inconsistent voltage drop or incorrect current amperage reading. Japa.. »

http://Isuzu-Trooper.autoboardz.com/check-engine-light-LS430-ftopict224570.html (check engine light LS430)
Diagnosed as L0430 oxygen sensor problem....anybody familiar with?

http://Isuzu-Trooper.autoboardz.com/Oxygen-sensor-problem-2001-Altima-ftopict248556.html (Oxygen sensor problem on 2001 Altima)
Had the engine light come on and took it to the dealer, dealer says catalytic converter problem will cost $900, asked him to check to see if the cat converter has damaged the engine he said no but if you don't do it soon it will. Replaced the cat converter and now a week later the light came o..
« Too late now. For future reference, the code for bad cat means the engine computer didn't like the readings it was getting from the after- cat O2 sensor. This means either the sensor is bad or the.. »
« You learned an expensive lesson. Codes don't tell you what part is at fault. They tell you what parameter is out of specification. It is then necessary to understand what the out of spec paramete.. »

http://Isuzu-Trooper.autoboardz.com/2001-Corolla-Coolant-Temp-Fuel-Control-Oxygen-Sensor-Problem-ftopict249133.html (2001 Corolla Coolant Temp/Fuel Control/Oxygen Sensor Problem)
Hi, I am a bit shocked at seeing what they want in diagnosing my car at the shop. It shows $310 parts must be ordered, for a front oxygen sensor. The codes being produced are P0125, P0171, and B151. I haven't found such a thing as B151 anywhere. If I investigated this right: P0125: Insufficient ..
« Maybe buy one for maybe 60$ and put it in yourself, but of course these must be dealer prices, so call around and get it done for maybe 100, get the proper spray and clean the sensor also »
« Thanks, I'll check with a local garage. Cheers - Mark »
« P0125 and P171 both point to Bank 1 Sensor 1, and perhaps a dirty MAF sensor. Bank 1 Sensor 1 is the O2 sensor that is sticking out of the exhaust manifold. You can replace it yourself by unplug.. »
« Thanks for all of that. In fact, I don't know what the difference between being one bank and another bank means, but I've worked with exhaust headers before, and I can see in aftermarket parts, the.. »