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Moderately High Altitudes and '81 240 GLT 200 1981

posted by  Ken C on  Sat Oct 4 13:46 CST 2003
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last visit: Fri Oct 24 11:39 CST 2014
[RELATED]

I guess you really haven't had a Volvo in several years, as you wrote. Carburetors (and any ability to set the mixture) haven't been possible for over 30 years. (just kidding :-)
But seriously, while there isn't much that you can do, there also isn't much you need to do, as altitude compensation is built in, the mass flow sensor respoonding to the difference in air density (that's why they call it "mass"), and barometric pressure sensors helping even more. Just make sure everything is working properly.
Remember, though, that any car loses power with increasing altitude (turbochargers and superchargers notwithstanding). The fact that you found some cars running better at high altitudes is without doubt because their carburetors were adjusted for the higher altitudes, and ran lean at sea level.
Best regards,





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