After replacing the oxygen sensor, still misfiring

Tiny
PFOOTMOM
  • 2003 SATURN ION
  • 4 CYL
  • 2WD
  • MANUAL
  • 175,000 MILES

Regarding the 2003 Saturn, the oxygen sensor was replaced and the engine light came back on. Code reader still shows random misfire and now the timing is advanced to 37 degrees at 2500 rpm. What is it?

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Tuesday, November 30th, 2010 AT 5:03 AM

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Tiny
JACOBANDNICKOLAS
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Was there a code for the O2 sensor?

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Tuesday, November 30th, 2010 AT 5:04 AM

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