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You changed your 02 sensor and the check engine light still comes on what could the problem be?
Wiki User
∙ 15y ago
You need to read the code(s) set to begin to make repairs. Depending on what model and year your vehicle is you probably have more than one O2 sensor. Many auto parts stores will read your codes for free in hopes you will purchase the parts from them to correct your problem.
Wiki User
∙ 15y ago
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