Va čia tai įdomu! Jei teisingai supratau, tai mišinys specialiai palaikomas 
truputį liesas, kad deginiuose būtų deguonies, kuris pakliuvęs į 
katalizatorių sunaudojamas oksiduojant CH ir CO. Taigi gerai veikiančio 
katalizatoriaus išėjime deguonies turi būti 0 ir dėl to lamba zodne susidaro 
maksimalus potencialų skirtumas tarp kontaktų ir rodoma pastovi maksimali 
įtampa...
Beje, iš kokio čia manualo?

> Tiems kas tanke apie 2 zondo paskirti ir darba. Cia rasoma apie 
> standartini zonda. (istrauka is auto manualo)
>
> The catalyst monitor uses dual oxygen sensors
> (O2S’s) to monitor the efficiency of the converter. The
> dual O2Ss strategy is based on the fact that as a catalyst
> deteriorates, its oxygen storage capacity and its
> efficiency are both reduced. By monitoring the oxygen
> storage capacity of a catalyst, its efficiency can
> be indirectly calculated. The upstream O2S is used to
> detect the amount of oxygen in the exhaust gas
> before the gas enters the catalytic converter. The
> PCM calculates the A/F mixture from the output of
> the O2S. A low voltage indicates high oxygen content
> (lean mixture). A high voltage indicates a low content
> of oxygen (rich mixture).
> When the upstream O2S detects a lean condition,
> there is an abundance of oxygen in the exhaust gas.
> A functioning converter would store this oxygen so it
> can use it for the oxidation of HC and CO. As the
> converter absorbs the oxygen, there will be a lack of
> oxygen downstream of the converter. The output of
> the downstraem O2S will indicate limited activity in
> this condition.
> As the converter loses the ability to store oxygen,
> the condition can be detected from the behavior of
> the downstream O2S. When the efficiency drops, no
> chemical reaction takes place. This means the concentration
> of oxygen will be the same downstream as
> upstream. The output voltage of the downstream
> O2S copies the voltage of the upstream sensor. The
> only difference is a time lag (seen by the PCM)
> between the switching of the O2S’s.
> To monitor the system, the number of lean-to-rich
> switches of upstream and downstream O2S’s is
> counted. The ratio of downstream switches to
> upstream switches is used to determine whether the
> catalyst is operating properly. An effective catalyst
> will have fewer downstream switches than it has
> upstream switches i.e., a ratio closer to zero. For a
> totally ineffective catalyst, this ratio will be one-toone,
> indicating that no oxidation occurs in the device.
> The system must be monitored so that when catalyst
> efficiency deteriorates and exhaust emissions.