check engine light

This topic has 2 replies, 3 voices, and was last updated 9 years, 1 month ago by Daniel Weith.

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October 8, 2015 at 2:27 am #841091
jimmy brown
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went to auto zone today check engine light on 2004 kia amanti codes po151 and po 154 what does this mean and were are they located
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October 8, 2015 at 2:37 am #841094
Kazuo Kuroi
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These are for the Bank 2 O2 sensor, the upper one if I’m not mistaken. This page is for the heater circuit but should give you some insight into the issue more: http://www.ericthecarguy.com/p0100-p0199/23-obd-codes/obd-ii-codes/141-p0141-p0135-p0147-p0155-p0161-p0167 as these are closely related codes to those mentioned ( you may have to replace the O2 sensor )
October 8, 2015 at 2:40 am #841095
Daniel Weith
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The codes point to an O2 sensor error:

PO151 – KIA – HO2S21 Circuit Low Voltage; http://engine-codes.com/p0151_kia.html

P0154 KIA – HO2S21 Circuit No Activity Detected; http://engine-codes.com/p0154_kia.html
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