1997 Oldsmobile Achieva Code Reading

Tiny
PERDUESRACING
  • MEMBER
  • 1997 OLDSMOBILE ACHIEVA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150,000 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
Friday, February 13th, 2009 AT 11:34 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 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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