Training

[Roger Heflin]

There is nothing really in the O2 sensor circuit to be settable.

Some things that will mess with them are: Loose O2 sensor, air
will get in, and the O2 won't always ground good.  

You might be able to add something in circuit with the O2 sensor
to cause it to mess up.  

Adjusting the looseness of the sensor may get the kind of results
you want, or you could delibertly make a bad O2 sensor and use it
in the tests (dirty it with leaded gas, or silicon posion it).

Now the real problem is that the newer ODBII cars will flag alot 
of things that the older computer controlled cars wont, so wether
it is flagged or not depends on how bad it is acting and how bad
it has to get for the computer to decide it is truely bad.

				Roger

On Mon, 14 Sep 1998, Geoff & Sue Richards wrote:

> Hi
> In the interests of training I would like opinions from the gurus
> Is it possible to 'set' a fault within an O2 sensor circuit without setting
> a code?
> I would like to make a vehicle run poorly for diagnostic training purposes
> Any help appreciated
> Thanks
> Geoff
> geoffsue at one.net.au
> 
> 
>