[928uk] Idle problem maybe solved

[Michael Parris]

I should add this problem is not the same as the one from 2017/18, I’ve
done a few thousand miles around Europe since then and it was faultless
(until a pothole broke it) I had someone else do some work on it earlier
this year, haven’t driven it much but has been funny since then.
Mike
90S4

On Fri, 6 Sep 2019 at 19:33, Michael Parris via 928uk <
928uk at lists.928.org.uk> wrote:

> Back to my idle/cold start/hot start problem.
>
> I found the vacuum line to the charcoal canister diverter valve was not
> plugged in. Obviously that's going to be letting in un-metered air and as
> the O2 doesn't work until it's warm and can compensate means before that
> happens there's too much air.
> I'm not really sure how much additional air a little line like that can
> let in but now I've plugged it back in the car starts from cold without
> throttle and stays running.  I only ran it for 5 to 10 minutes at idle
> until the temperature was about quarter of where it normally is, left it an
> hour and started it again without throttle and it was fine.
> Actually the first time I started it after plugging the line in it ran for
> about 10 seconds then suffocated and died (or seemed like it), started it
> straight away and it ran OK if a little wobbly for about 20 seconds.  I'm
> wondering if it was running a previous 'more air' adaptation to start with
> and suddenly with less it couldn't run.
>
> I'll try again from cold tomorrow just to check it wasn't a fluke.
>
> Mike
> 90S4
>
>
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