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How do I fix p0641, p0050, and p0030 in the 2007 Chevrolet Malibu Maxx 3500?

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How do I fix p0641, p0050, and p0030 in the 2007 Chevrolet Malibu Maxx 3500?

Vehicle: 2007 Chevrolet Malibu Maxx 3500

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P0641 CHEVROLET - 5 Volt Reference Voltage Incorrect
Read more: https://www.autocodes.com/p0641_chevrolet.html

P0050 CHEVROLET - HO2S Heater Control Circuit Bank 2 Sensor 1
Read more: https://www.autocodes.com/p0050_chevrolet.html

P0030 CHEVROLET - HO2S Heater Control Circuit Bank 1 Sensor 1
Read more: https://www.autocodes.com/p0030_chevrolet.html

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