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The car when the heartbreak sortie and when the the upside to the top, and is considered one of the effort.
There is something to take the gasoline and fuel burned up at the beginning of a new movement, only air that is pressed on the gas pedal more than once.
Knowing that when this happens to them, including the heartbreak Akhrkh black smoke when you press on the gas pedal and is standing

Vehicle: Hyundai Elantra 2005 engine size 2.0

1 Answer

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Hi there,

The P0420 code points to an issue with the bank 1 catalytic converter. Here is some info regarding this code.

P0420 HYUNDAI - Warm Up Catalyst Efficiency Below Threshold Bank 1

Read more: https://www.autocodes.com/p0420_hyundai.html

The P0139 code points to an issue with the bank 1 sensor 2 O2 sensor. Here is some info regarding this code.

P0139 HYUNDAI - HO2S Circuit Slow Response Bank 1 Sensor 2

Read more: https://www.autocodes.com/p0139_hyundai.html

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