Backfire like that would indicate a lean condition, no?

I'd go with a new fuel filter and check for fuel leaks especially ahead of
the fuel pump where it could be sucking air.

But I'd also make sure to check the total timing advance.

Viel Gl�ck!

On Thu, May 22, 2008 at 2:08 PM, Poppie Jagersand <poppie.jagersand@yahoo.ca>
wrote:

> Hi,
>
>  While driving the 1.9l wasserboxer first lost power and backfired on
>  steep uphills, then shortly started loosing power at any time, until
>  we had to creep off the highway on idle until the next exit.
>