Kevin Apps
Have your read the article in the link ? did you search out more article,s ?
If so you will know why your LONG term trim is where it is (-22 %).
You have not really posted the full story yet,we dont know why the car is in (mil on and you have code read it ?), what code(s) etc etc.
Most dealer tools have a re-set learnt value's function on most engine control unit's.
Kev.
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Citroen C3 1.4 2002 - Lean mixture - Fixed # - Shane Gray August 23, 2014, 11:14 am
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