On Tue, 03 Jan 2006 16:17:28 GMT, Backyard Mechanic
>RT <email@example.com> wrote:
>> On Sun, 18 Dec 2005 18:35:22 GMT, Backyard Mechanic
>> <firstname.lastname@example.org> wrote:
>>>"JEFFREY PRIVOTT" <email@example.com> wrote:
>>>> Had codes on a 94gt Manual transmission read and the following was
>>>> this. 172 HO2S (sensor ) System Lean ( Bank 1 ). What does this mean
>>>> and what is my next step to correcting these errors.
>>>Clean the MAF
>>>look for the vacuum leak
>> 2nd step; replace O2 sensor(s). How many miles are on the car ?
>Okay... here's a thought. JUST replace the sensor and see what
>happens... 99% probability: same thing.
>While replacing the sensors at that mileage is probably a good idea, I
>have yet to replace one for reading 'lean' and I've taken 4 cars over the
>185,000 mark with no perceivable drop in fuel economy and no CEL due to
>When a sensor gets old, it reacts slower... that's all. And its age is
>more to do with the fuel you're giving it and the amount of oil burned.
Well, I've seen sensors that last forever and I've seen sensors that
broke at 60K miles.