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Q: starts and idle no accleration on 2002 Volkswagen Jetta

codes 1631 1634 1173
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These codes sound like a bad accelerator pedal position sensor/ bad throttle housing.
There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
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