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Do I need OEM catalytic converted or after-market will work

Tiny
RUBS
  • MEMBER
  • 2001 INFINITI I30
  • 141,000 MILES
I just replaced 2 oxygen sensors since the check engine light gave p138 code and now it is again on and give p430 and mechanic told me that it needs (bank 2) front catalytic converter and we need to buy oem since after-market are not good enough, is that true or I should be able to use after-market since big price different. Also I switched off the check engine manually and inspection passed without issue but light came back on so not sure how it passes inspection or do I really have an issue.
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Monday, December 19th, 2011 AT 9:37 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
A good quality after market cat will be fine.
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Monday, December 19th, 2011 AT 9:42 PM
Tiny
RUBS
  • MEMBER
  • 2 POSTS
Thanks, Can you post the link to part that needs to be replaced. (Bank 2 p0430 code)
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Monday, December 19th, 2011 AT 10:15 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
In MOST cases an aftermarket will work but there are exceptions. Some vehicles use a very large OEM converter and the aftermarket cats will be too small. I see this in Toyotas often. Can't tell you for sure on yours.
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Monday, December 19th, 2011 AT 11:00 PM

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