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P0156, P0158, and P0300 for my 2004 GMC Sierra, what is the meaning of the codes?

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P0156, P0158, and P0300 for my 2004 GMC Sierra, what is the meaning of the codes?

Vehicle: 2004 GMC Sierra

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P0156 GMC - Heated Oxygen Sensor Circuit Malfunction Bank 2 Sensor 2
Read more: https://www.autocodes.com/p0156_gmc.html

P0158 GMC - HO2S Circuit High Voltage Bank 2 Sensor 2
Read more: https://www.autocodes.com/p0158_gmc.html

P0300 GMC - Cylinder Misfire Detected Random Cylinders
Read more: https://www.autocodes.com/p0300_gmc.html

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