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Railroadertwo

October 3rd, 2014 5:18 PM

Rough Idle when engine cold

1996 Corsica Basic V6, when first starting engine, it will idle great, for few minutes, then will start to idle rough for a few minutes, then will smooth out and idle great after that. I have changed the coolant temp sensor, front and back oxygen sensor. Ideas, Thoughts. Thanks

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