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Volvo 940 230fd and little bit too high fuel consumption PART 2 900

posted by  volvomies on  Wed Feb 10 03:08 CST 2021
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My exhaust is rich because o2 sensor gives mainly high volts. So it tries tell ecu that my exhaust is rich, lean it?



I had two bosch oe o2 sensors. I drived 1k miles with first one. Lazy readings but me thinking about worn sensor. Now a week ago i ordered another new bosch oe sensor and it reads still same.





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