replaced post cat 2x and the check engine light is still on-also had wiring/voltage checked and all is ok-any ideas?
Dec 29, 2011 at 4:55 AM
HiWhen replacing O2 sensors do they have to be OE or can they be aftermarket?
2001 HYUNDAI ELANTRA
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Have you reset the computer with a scanner? And yes, you can use an aftermarket.
Dec 29, 2011 at 4:56 AM
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-
Dec 29, 2011 at 5:30 AM
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That is my choice too, Raz. I agree, but can't always afford them.
Dec 29, 2011 at 5:36 AM