CGT stalling

[Robert Hemphill]

Jeroen Bruintjes wrote:

> Hi list,
>
> Since yesterday my 1985 CGT 2.2 has developed a really weird
> problem. Starting is next to impossible and when doing so, I smell
> strong petrol fumes from the exhaust, like the engine is flooding.
>
> Now, the car is equipped with a propane gas installation. I can
> manually switch to lpg. Starting on lpg is very difficult (this is
> normal), but it runs fine. So no ignition problems.
>
> Cleaned al contacts of the lpg system yesterday, since they were
> corroded and might prevent the switch back to petrol. Everything
> ran fine for a while. I could switch from lpg to petrol and back - so
> the fuel pump and the injectors are all fine, smooth revving to
> redline here on both fuel types.
>
> An hour later, the problem was back. This morning too... took ages
> to start on lpg and once it did, a terrible petrol-smelling cloud drifted
> by, indicating an engine that was completely flooded... weird. I park
> it, rev it to 4000, switch back to petrol and it completely dies.
>
> Just a few minutes ago, I suspected the fuel pump relay. Pulled it
> and without the relay, the car starts perfectly on petrol like it
> should, but dies within a few seconds. I'm gonna try swapping the
> relay as soon as I find another one. Could it be the source of my
> problem?
>
> *stunned*
>
> --
> Brun uit/uut/de/aus/from Amsterdam. Met een dakje op de u!
> *the* Audi Coupe GT 2.2: http://www.sls.wau.nl/fstolp/acgn/bruintjes.html
> --

Once in a while, an ignition switch will fail so that while cranking, there
is no voltage
to the coil. Tough problem to realize, too.With weak contact, your dual fuel
system might be loading the switch.Worth a check.

Robert Hemphill