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For a 2005 Buick Terraza how is the code for catalyst reset?

Tiny
CWHITE5344
  • MEMBER
  • 2005 BUICK TERRAZA
  • 175,000 MILES
Have had to replace the O2 sensors, thermostat, and plugs and wires. It still gives a code for the catalyst and something aboutvapor(fuel) code? I was told that they would reset with driving. How do I reset these?
Sunday, September 25th, 2011 AT 7:19 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The cat code indicates an effiency issue. It most likely has to be replaced. Rarely is the o2 sensor at fault with a cat code. If you drove your car with missfires for a long time, it most likely damaged the cat to the point it needs to be replaced. The code will go away when the issue is resolved. The tech repairing the car will re set it.

Roy
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Sunday, September 25th, 2011 AT 7:51 PM
Tiny
CWHITE5344
  • MEMBER
  • 2 POSTS
Thanks for your help. By cat, I am assuming that this is the catalytic converter?
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Sunday, September 25th, 2011 AT 8:02 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes sorry, it means the cat converter.

Roy
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Sunday, September 25th, 2011 AT 8:16 PM

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