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Intermittent Rich Condition, Interpreting 02 Sensor Graphs

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Old Jun 18, 2020 | 12:13 PM
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tony1098
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Question Intermittent Rich Condition, Interpreting 02 Sensor Graphs

Hi Guys,

I am dealing with an intermittent rich condition that causes a sudden loss of power and erratic idle. Codes thrown previously were P0172 and P0132. No codes currently because the computer reset when I pulled the terminal to change out my coolant temp sensor. Driven almost 150 miles since. I've been watching my O2 sensors with my scan tool while driving around. Below are some random samples of the O2 sensor data taken while driving around and idling in traffic. From my understanding of O2 data it should be rapidly rising and falling between .1 and .9 but as you can see that isn't the case. Already have the Bank 1 Sensor 1 replacement on the way (NTK dont worry) but sensor 2 is reporting strangely too it would seem. Am I interpreting this data correctly? any advice?

Thanks Guys!










 
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