David

        I ran mine that way for many years & many many miles & it seemed to
love it. On those

occasions when I would head for somewhere closer to SeaLevel I would
set it back to normal.

I had marks scribed into the Dist'Base so, for example, every year
when I would go to Ill' &

Minn' to visit Family, somewhere in Kansas I would adjust for LowAlt'
& then on my way back

I'd do the reset for 5K'. It makes a Very Noticeable Difference.

                                                        ORR ~ DeanB

On 12 Jan , 2012, at 8:36 AM, David Hardy wrote:

>>       You actually answered your own ? before you asked it. In a
>> ComputerControlled FuelInjected N'A' vehicle (especially if it is
>> OBD2) the lack of AirDensity @ Altitude is compensated for by
>> lowering
>> the amount of gas' that is injected into the IntakeManifold so as to
>> attempt to maintain a StoichiometricFuelRatio.
>
> So I have a question: Do we dwellers-at-altitude still need to advance
> the ignition timing of our wasserboxers with the "1 degree per 1000ft
> above 4000ft" rule? The 02 sensor can compensate for less oxygen, but
> does it adjust timing?  Google doesn't seem to have a definitive
> answer.
>
> David