• Tiny
  • perduesracing
  • 1997 Oldsmobile Achieva

Computer problem
1997 Oldsmobile Achieva 4 cyl Front Wheel Drive Automatic 150000 miles

My check Engine Light came on today and I had the Code Read and it stated Oxygen Sensor on Bank one was running to Lean. That Oxygen sensor is the one next to the Catalitic Converter. My question is do you think the Oxygen sensor it self is at Fault or would it be dumping to much unburned gas out the Exhaust. A week Before the Check Engine light came on the car started a small hestitation when you first went to take off from a light or stop sign but would be fine once you started going. Any Suggestions or help on this. That was the only code it read by the way. Thanx in advance

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have the same problem?
Friday, February 13th, 2009 AT 11:34 AM

1 Reply

  • Tiny
  • JDL
  • Expert
  • 16,289 posts

If it's been awhile since a tune-up, I'd start there. With obd11 there should be at least two 02 sensors, one before the cat, the other after.

If you can drive the sensor rich, I don't suspect the sensor.

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Friday, February 13th, 2009 AT 12:52 PM

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