2007 Nissan Maxima P0420 code

Tiny
SHANAREED4
  • MEMBER
  • 2007 NISSAN MAXIMA
  • V8
  • FWD
  • AUTOMATIC
  • 11,100 MILES
Engine light came on took to dealer said it was rear catalytic converter and now engine is back on and they said it might be the front one now because its giving the same code. Is that right or are they trying to get me? Thanks
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Tuesday, October 19th, 2010 AT 7:41 PM

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Tiny
SATURNTECH9
  • EXPERT
They replaced the cat under your car for that code?For that code it only show's if it was a bad cat causing that code the 3 way manifold cat on the engine not the cat under the car.
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Tuesday, October 19th, 2010 AT 8:42 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
Catayltic converters rarely fail and even when they do its normally because of something else such as a faulty oxygen sensor. I wouldn't be surprised if the oxygen sensor(s) are not at fault here causing the trouble code to appear.
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Tuesday, October 19th, 2010 AT 8:42 PM

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