CODE PO1034 SENSOR CIRCUIT NO ACTIVITY DETECTED

  • Tiny
  • Tamishiv
  • 2005 FORD TAURUS
  • 130,000 MILES

Sensor Circuit no activity detected, Could you tell me what this exactly means and what I need to do to fix this problem? We changed spark plugs and wires, replaced the oxygen sensor. Please Help!

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Tuesday, May 22nd, 2012 AT 11:31 AM

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  • Tiny
  • Wrenchtech
  • EXPERT
  • 20,567 POSTS

That would be a PO134. It means the 0/2 sensor is not generating voltage as it should when it sees a rich mixture. This could mean there is too lean a mixture, a problem with the wiring, PCM or sensor.

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Tuesday, May 22nd, 2012 AT 12:42 PM

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