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2002 Nissan Altima TROUBLE CODE P0420

Tiny
PEPSI123
  • MEMBER
  • 2002 NISSAN ALTIMA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 95,005 MILES
I REMOVED THE CAT CONVERTER, BUT THERE SEEMS TO ME NO DAMAGE VISIBLE. PLEASE ADVISE
Wednesday, August 6th, 2008 AT 11:41 AM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
The converter efficiency isn't alsway affected by if the bed is damaged or not, the precious metels inside it, platinum and paladium can be burned out of it, and you can't tell by looking at it, it is judged by how much switching is done by the downstream O2 sensor, and yours must be switching between rich and lean too much.
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Wednesday, August 6th, 2008 AT 12:52 PM
Tiny
DWILLS817
  • MEMBER
  • 2 POSTS
So how much does this normally cost to fix
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Sunday, March 13th, 2016 AT 3:06 PM

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