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General Precautions of EFI System Maintenance F-17 16. P0054 Downstream Oxygen Sensor Internal Resistance Irrational Description about Malfunction Cause: Heater of oxygen sensor is diagnosed through monitoring over the internal resistance of heater. The internal Malfunction Diagnostic Guide: Required Equipment: (Diagnostic Instrument with EOBD Diagnostic Function) Step I: Use diagnostic instrument to read the malfunction information Read Result I Read Result II MIL Lamp On P-CODE Present MIL Lamp Off P-CODE Present
P0054
P0054 Maintenance tips: The malfunction has been confirmed, and the 1) The heating function of downstream oxygen sensor failed, and the oxygen sensor to be Maintenance tips: The malfunction has not been finally confirmed.
17. P0101 Air Flow Meter Sensor Signal Irrational Description about Malfunction Cause: The signal of air flow meter sensor is obtained by the transformation of temperature difference signal to Malfunction Diagnostic Guide: Required Equipment: (Diagnostic Instrument with EOBD Diagnostic Function) Step I: Use diagnostic instrument to read the malfunction information Read Result I Read Result II MIL Lamp On P-CODE Present MIL Lamp Off P-CODE Present
P0054
P0054 Maintenance tips: The malfunction has been confirmed, and the The air flow meter failed, and the air flow meter to be Maintenance tips: The malfunction has not been finally confirmed.
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