Hello everyone
First of all, please excuse me for the mistakes i will write, i'm french and i can't find the solution to my problem on french's topics, and because this is "probably the worlds greatest Polo resource", i really hope find some help here
I'm driving a 2007 Polo 9N3 1,6L 80cv. She is 85'000 kilometers.
On the dashboard, the orange engine light came on. I have a small device to do the EOBD test, I use the application Car Scanner Pro on iPhone.
Trouble code : P0301, misfire detected in cylinder 1.
The 4 spark plugs are brand new. I changed the ignition coil. I also checked the injector. None of that solved my problem. So i think maybe it's because of the oxygen sensor. Here are some screenshots of what my EOBD test is telling to me.
As you can see on the 1st screenshot, i got n/a% for the 2nd Oxygen Sensor short term fuel trim. Is this normal ??
For the 2 others screenshots, i failed some of the tests as you can see.
I don't understand everything of theses data. What are your conclusions ? Do I simply have to change the second oxygen sensor ?
Thanks !!
Happy new year, and stay safe
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P0301, misfire detected cylinder 1
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