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

Here again.



Problem still there. Ive noticed that my o2 sensor is reading 400-800mv at most time, wont jump fast 100-900mv. I have tried two oe bosch sensors now so they cant be bad.


What can make o2 sensor to lean mixture? If i do vacuum leak o2 sensor drops 100-200mv so it will richen mixture like it should.



And again all checked






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New Volvo 940 230fd and little bit too high fuel consumption PART 2 [900]
posted by  volvomies  on Mon Dec 14 11:17 CST 2020 >


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