Mechanics

ANY CHANCE IT WON'T GO OFF?

2001 Hyundai Elantra • 197,000 miles

Hi

I replaced both O2 sensors with original hyundai sensor(after cat and before cat) in Jan. 2012-I just cleaned carbon from engine with seafoam. The CEL is now on, my question is will cleaner(seafoam) throw my readings off that greatly as to set off the CEL? And will it go off when the readings stabilize?
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Riebed
July 11, 2012.




Scan the computer for code/s and comeback with the code/not the description of the problem-we start here -Go check out Autozone its free to the public-

Rasmataz
Jul 11, 2012.
Codes are PO136/PO140 and PO141-possible got a bad O2 sensor-just changed both in Jan. 2012- Hyundai dealer I would hope they checked the circut before they replaced the sensor!
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Tiny
Riebed
Jul 12, 2012.
Oxygen sensor problem: If the codes are still coming back-They should check the wiring and the computer

Rasmataz
Jul 14, 2012.

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