2004 Hyundai Sonata PO130 Code

2004 HYUNDAI SONATA
91,000 MILES • 6 CYL • FWD • AUTOMATIC
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WILL202XGI
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After replacing all 4 O2 sensors I'm still getting a PO130 code. Could any other component cause a PO130 code?
Jun 7, 2008 at 6:27 AM
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RASMATAZ
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The O2 sensors are they OEM parts?

A code P0130 may mean that one or more of the following has happened:

The oxygen sensor is faulty
The wiring to the sensor is broken / frayed
There is an exhaust leak
Possible Solutions: The simplest thing to do is to reset the code and see if it comes back.

If the code comes back, the problem is more than likely the front Bank 1 oxygen sensor. You will likely wind up replacing it but you should also consider these possible solutions:

Check and fix any exhaust leaks
Check for wiring problems (shorted, frayed wires)
Check the frequency and amplitude of the oxygen sensor (advanced)
Check for a deteriorating / contaminated oxygen sensor, replace if necessary
Check for inlet air leaks
Check the MAF sensor for proper operation
Jun 7, 2008 at 6:33 AM
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DOCHAGERTY
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Hyundai uses similar electronics to BMW and this issue can be due to software. A possible reflash could be the solution.
Jun 7, 2008 at 10:25 AM
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