P0171 Trouble Code: System Too Lean Bank 1 Diagnosis

In this video, I show you how I troubleshoot a Check Engine Light (CEL) / Diagnostic Trouble Code (DTC) P0171, System Too Lean Bank 1. The exact vehicle in video is a 2002 Toyota Tacoma standard cab 4 cylinder pickup truck. The techniques shown can be used on many vehicles, not just Toyotas.

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Видео P0171 Trouble Code: System Too Lean Bank 1 Diagnosis канала Big Dog50001 Automotive