I checked my duty cycle measurement after fitting a new lambda sensor. Ignition on and engine off it reads 70%. Start the engine and it reads 50%. Once warmed up it reads approx 65% (varies slightly). But if I insert the allen key, push down and try to adjust the setting at idle nothing happens. It doesn't matter how far I turn the screw or how long I let it sit idling after adjustment the reading stays the same. I've had it one full turn in either direction and still no change to the reading. The allen key is definitely engaging in something as I can feel the 'flats' of the adjustment screw. Has anyone else had this issue?
I'm not overly worried about this but I would like to adjust it back to approx 50% rather than 65%.
I'm not overly worried about this but I would like to adjust it back to approx 50% rather than 65%.
