Maybe a dumb question, but do you have the means to try your laptop and cable on another vehicle. Although it would use one of your VIN's (some say it won't if you don't actually change anything, I don't know if that is true) it would tell you it is not the car having the issue.
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2004 986 Basalt Black Metallic. L&N IMS Retrofit, 996 Door Cards, Smarttop, Aerokit II bumper and sideskirts, Toth ducktail
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