Hi
I live in Norway, and discovered this good site when I was looking for answer for my problem.
I have 90 mod 260E who is using a lot of gasoline. I have replaced O2 sensor and Electrohydraulic Aktuator (EHA).
Duty Cycle(DC) is fluctuating around 50% with cold engine. O2 sensor 0.2v.
When the engine is warm the DC goes to 92% and stay there until I give the engine some RPM, then he goes to 48-52% a little time before returning to 92%
The readings at O2 sensor is 0.01v when DC is 92%
I have also check the resistance of the engine controls coolant sensor, and is OK
I have tried to adjust the air-fuel mixture, but there is no change in my readings on DC and O2 sensor.
Is there anybody in your big country who has a solution on my problem?