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4.3 tbi
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  1. Engine
    Last year I went to Texas. As soon as I crossed the TX line, my check engine light comes on. It was code 13. Let me give you the specs on code 13, then my motor specs before I continue... Code 13: Oxygen sensor circuit - Oxygen sensor voltage stays between 0.35 and 0.55 volts for 30 seconds...
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