Can An Oxygen Sensor Stop Your Car From Starting Correctly

I got my car scanned and the system said i had a bad o2 sensor. can that be the reason y my car isnt starting correctly? also i have been having problems with my fuel gauge. it seems to stay on F until i stop my car completely then it levels off right SOMETIMES. what can that be?
1999 Cavalier

Answers for The Question

  1. Jessymurphy21
  2. Tony
  3. Dodge Man
  4. Peter H
  5. The Freak Show
  6. Marinespill
  7. Jenksace