Question about 1999 Volkswagen Jetta

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Emissions test I have to get the car emission tested.unfortunatly the speedometr stopped working about a week ago.Will that fail? If so will they give me time to fix it or just disable the car on the spot?

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Well, depending on the year of your car and the state in which you reside, the procedure might be to use an interface called the OBD-II system (AKA On-Board Diagnostics II) to test your emissions. The OBD-II is accessed from a little port near the hood release lever and can communicate with a diagnostics computer through a cord that mechanics use. The OBD-II inside of your car is a computer that monitors your car's functions and equipment. The speedometer failure will likely register on the OBD-II interface when a mechanic goes to check your emissions data that your car collects while you drive it.

Posted on Jun 29, 2008

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Most of the Smog testers need to use the speedometer for testing since they have to test your vehicle emissions at 15mpg, 25 mph, etc. So you will likely need to get that fixed before your testing

Posted on May 30, 2008

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