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P0173 Fuel Trim Malfunction Bank 2. You need to identify where is cylinder number 1. This one will be the bank 1. The bank 2 is the other one. Need to check Air Flow sensor Fuel Pressure psi (47-50) psi. Incorrect Fuel Engine Coolant Temperature sensor ECT sensor Heater Oxygen sensor B2S1 and B2S2 Intake Air Temperature Senso PCM

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17y ago

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