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I have no idea where to start, and need to get this vehicle through DEQ
Vehicle: 2000, bmw 328ci 2.8L

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P0150 H02S circuit malfunction Bank 2 Sensor 1

P0173 Fuel trim malfunction Bank 2

P1189 Fuel trim limits exceeded

Vacuum leak has to be inspected first. If none can be found you would more than likely have a failed 02 sensor dealing with Bank 2 Sensor, You have  3 codes that confirms a problem with Bank 2 Sensor 1

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asked Oct 8, 2018 by Chris Dullea

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