LEMON Manuals: Even more car manuals for everyone
Home >> Porsche >> 2004 >> Boxster Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DME 7.8 Diagnosis >> DTC P0134: O2 Sensor Circuit No Activity Detected >> Diagnosis/troubleshooting - all naturally-aspirated models

Diagnosis/troubleshooting - all naturally-aspirated models

NOTE:
  • The DTC covers electrical open circuits here.

Diagnostic conditions 

Possible cause of fault 

Affected terminals 

DME control module connector II, pin 9 and oxygen sensor jack, bank 1, pin 3

DME control module connector II, pin 15 and oxygen sensor jack, bank 1, pin 4

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: P0134 Work Instruction (All Naturally-Aspirated Models, Step 1)
G02530264Courtesy of PORSCHE OF NORTH AMERICA, INC.
Fig 2: Oxygen Sensor Oscilloscope Pattern
G02530265Courtesy of PORSCHE OF NORTH AMERICA, INC.
Fig 3: P0134 Work Instruction (All Naturally-Aspirated Models, Step 2 & 3)
G02530266Courtesy of PORSCHE OF NORTH AMERICA, INC.
Fig 4: P0134 Work Instruction (All Naturally-Aspirated Models, Step 4 Through 9)
G02530267Courtesy of PORSCHE OF NORTH AMERICA, INC.
scientia non olet · About LEMON Manuals