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Home >> Porsche >> 2003 >> Boxster S, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DME 7.8 Diagnosis >> DTC P0161: O2 Sensor Heater Circuit >> O2 Sensor Heater Circuit >> Signal implausible
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Signal implausible

Diagnostic conditions 

Possible cause of fault 

Affected terminals 

DME control module connector II, pin 1 and oxygen sensor jack, bank 2, pin 2

Diagnosis/troubleshooting 

NOTE:
  • Do not use contact spray on the oxygen sensor plug connections as this may cause irreparable damage to the wiring (contamination of the oxygen sensor via the reference air channel).
Fig 1: P0161 Work Instruction (Signal Implausible)
G02530317Courtesy of PORSCHE OF NORTH AMERICA, INC.
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