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Passing smog at higher elevations

Engine

Vehicle Information: Model: Carrera; Year: 1987; Body Type: Targa; Engine (type, size, modifications): NA/H-6/3.2/Weltmeister chip, cat by-pass; Total Mileage: 118700;

I live at an elevation above 5000', frequently exceed 7000' in local travel and have to undergo a smog check each year for DMV registration. After I bought the car a few years ago, I took it into the leading(?)local independent (the local dealer won't work on any car more than 10 years old) for a medium throttle miss/hesitation and they insisted that the oxtgen sensor had to be disconnected and the engine subsequently retuned and "set up" to run at elevation. This is all well and good and it runs fine, but this also means that, in order to meet smog requirements annually, the oxygen sensor has to be re-connected and the engine retuned to meet smog. This seems like a "strawman" for more work as it is hard for me to believe that Porsche/Bosch could not develop/design an engine management system that would function well and capably at varying elevations. Is it me or am I being had? Your comments, please!

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