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2001 Hyundai Elantra Repair Question


Topics covered: Sensor, Dealer, Engine.
Mileage: 197,000 miles.

Asked on July 11, 2012

Any chance it won't go off?

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?
Avatar Asked by riebed

Answer

Replied on 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-

Tiny Answered by rasmataz
68 questions asked
Replied on July 12, 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!

Tiny Response from riebed
100 questions asked
Replied on July 14, 2012

Oxygen sensor problem:If the codes are still coming back-They should check the wiring and the computer

Tiny Answered by rasmataz
68 questions asked