O2 sensor slow response repair

1998 SATURN SW2
145,000 MILES • 4 CYL • FWD • AUTOMATIC
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RICH BONDERUD
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  • 1 POST
Can my OBDII code P0133 (pending) (O2 sensor CKT slow response) be dealt with by replacing the O2 sensor and is the Sensor 1 the upstream or downstream? Thanks.
Mar 5, 2011 at 7:39 PM
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SATURNTECH9
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  • 30,869 POSTS
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Most of the time it's a bad o2 sensor i would replace the sensor.It's the sensor in the exhaust manifold.
Mar 5, 2011 at 7:41 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
It's called the upstream or front o2 sensor.
Mar 5, 2011 at 7:42 PM
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