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2007 Chevrolet Cobalt Question: Emmission test revealed problem code p0121. What is it and how much to fix



beingcareful, Chicago, IL, April 12, 2013, 18:06

Check engine light comes and goes.

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  • Answer #1

    April 12, 2013, 22:53

    tbs code Throttle position sensor you can buy one and change it yourself

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