1999 Chevy S-10 O2 Sensor

Tiny
ZZORAG
  • MEMBER
  • 1999 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • MANUAL
  • 275,000 MILES
My MIL is on and after scanning it the code came up as P0147 O2 sensor Heater Circuit Malfunction( Bank 1 Sensor3) Would that be located before or after the catalytic converter? Should it be replaced or could that code indicate a loose wire? Also is it easy to get at and fix?
Saturday, January 26th, 2008 AT 8:46 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
More then likely the sensor is bad.

It is located after the catalytic converter, last sensor on the exhaust pipe.
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Saturday, January 26th, 2008 AT 8:53 PM

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