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go to, http://www.camaroz28.com/ , on this site you can find out what the error is. they have a good message board where you can talk others with the same problems.

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Q: What does 02 Sensor circuit Low Volts bank 2 sensor 2 Mean. Already replaced both 02 sensors in 1999 Z28 Camaro. It is error P0157 on the OBII scanner.?
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