On 5/12/05 4:07 PM, "Daniel Sherwood" <daniel_sherwood@YAHOO.COM> wrote:

> I don't know exactly why my van runs too rich at
> elevation but I learned that by unplugging my fuel
> pump and cranking the engine it will start to fire
> properly for a brief time before running out of fuel.
> Then you can plug the fuel pump back in and it will
> start normally and continue to run.  This is a good
> tip to keep in mind if ever you feel your engine is
> getting too much fuel but can't figure out why.

You may find this hard to believe but it is true.  Yes the unplugging will
work in lieu of a retune for altitude.  BTW if you have a rotary mazda, I
have rigged two of them with switches in the dash for the fuel pump.  It
seems as they get old and lose compression they are prone to flooding before
starting even at low altitude.  Found that fix in a mazda list.  Lists are
good!

jimt