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I had this problem, I had a faulty TPS sensor

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Q: What causes a Hyundai Elantra 2001 manual transmission's engine to rev while in neutral?
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What causes a 1997 Hyundai Elantra wagon automatic not to move between the speeds of 20 - 35 mph after stopping at signals and if the accelerator is pressed hard it moves with a kick?

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What causes Overheating on Hyundai Elantra?

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