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Q: My car has a check engine light and gave codes P2195, P2251, P0170

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My car has a check engine light and I checked the codes and this is what came up: P2195 Powertrain O2 Sensor Signal Stuck Lean bank 1 Sensor 1; P2251 Powertrain O2 Sensor Negative Current Control Circuit / Open bank1 Sensor1; P0170 Powertain Fuel Trim (Bank 1). I don't know very much about cars. What could this be, and how do I fix it?

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