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Why is ets and check engine light on on a 97 Pontiac sunfire convertable?
Wiki User
∙ 14y ago
change the oxygen sensor and remove the positive battery terminal for two-three minutes to let the computer reset. This allows the computer to recalibrate for the new sensor. You might have to drive for a while for the "cycle" to complete. That's it.
Wiki User
∙ 14y ago
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