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HiWhen replacing O2 sensors do they have to be OE or can they be aftermarket?

Tiny
RIEBED
  • MEMBER
  • 2001 HYUNDAI ELANTRA
  • 197,000 MILES
Replaced post cat 2x and the check engine light is still on-also had wiring/voltage checked and all is ok-any ideas?
Thursday, December 29th, 2011 AT 4:55 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Have you reset the computer with a scanner? And yes, you can use an aftermarket.
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Thursday, December 29th, 2011 AT 4:56 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Joe-Joe, I prefer OEM not imitation, if its not the real deal I don't deal-its an options if you cannot afford the best, just hope it works like the best. You can confirm it if its doing its job by viewing the data stream of the scantool-
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Thursday, December 29th, 2011 AT 5:30 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
That is my choice too, Raz. I agree, but can't always afford them.
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Thursday, December 29th, 2011 AT 5:36 AM

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