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That could be a number of things. It could be your TPS. Your timing could be a little off. There could be a vacuum leak somewhere. Your EGR could be bad. Your injectors could be dirty. Your idle speed could be set incorrectly. Your fuel pressure regulator could be operating at a low pressure.

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12y ago
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13y ago

could be alot of things from a vacuum leak to a IAC (idle air control) module the type of car is very helpful

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Q: What causes low idle?
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