Rich stop on '86 4 ksq

[Huw Powell]

> > OXS fluctuates.
>
> With or without OXS the current is steady 17,7 mA.

There's something contradictory about those observations.

In order for the OXS to fluctuate (properly... up and down around .5
volts), the mixture *must* be oscillating above and below stoich, or a
perfect clean fuel/air ratio.  For this to happen, in this closed loop
system, the actuator current must also fluctuate, since it controls that
mixture based on the OXS output...

How are you measuring the current?  Something seems fishy...

Look on my site under "tuning CISE" in... the middle left menu I think,
for a picture of this measurement being taken, see if that corresponds
to what you are doing.

Also, a question I had bu didn't ask earlier on - where is this phrase
"rich stop" coming from?  bentley?  Just curious, never heard it
before... and good luck...

--
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/