Would a fluctuating long term fuel trim readout indicate a sensor problem in a P0171/174 lean code? | E46 Fanatics Forum
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What Is Negative Long-Term Fuel Trim (Causes & What's Normal?) - Car, Truck And Vehicle How To Guides - Vehicle Freak
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Short Term fuel Trim Long Term fuel Trim fully explain | P0170 | P0172 | The Car Doctor Pakistan - YouTube
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