Hello,
I have a 325i that had been sitting for a few years. I took it out and discovered I got sooty spark plugs and had a very dirty O2-sensor.
I changed the spark plugs and cleaned the 02 sensor in some gasoline and with a fine grit sand paper.
Now the car runs lean and chugs at high rpms, feels down on power, and it gets worse when the engine gets hot.
The plugs are super clean when I check them and I seem to have a fuel delivery issue.
All things being the same except for my stupid clean of the O2-sensor, could a faulty o2 sensor first cause rich running and then lean running?
I have a 325i that had been sitting for a few years. I took it out and discovered I got sooty spark plugs and had a very dirty O2-sensor.
I changed the spark plugs and cleaned the 02 sensor in some gasoline and with a fine grit sand paper.
Now the car runs lean and chugs at high rpms, feels down on power, and it gets worse when the engine gets hot.
The plugs are super clean when I check them and I seem to have a fuel delivery issue.
All things being the same except for my stupid clean of the O2-sensor, could a faulty o2 sensor first cause rich running and then lean running?
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