[THE NEW GUY]

update, when I slightly change the impedance on the lower part of the tps, the problem disappear. This is done with a 200Kohm resitor in parallel with the more negative part of the TPS wich, electronically talking, is a potentiometer. By doing this, I lower the voltage emited from the tps and being transfered to the ecu (0.0025vdc less) The tcu thinks that the apperture of the thottle butterfly is smaller than it really is.
I was noticing lately that the perfonmance on the car was being improved. This is the result of the learnig process on the ecu; advancing the ignition timing to match the use of gasoline 94 oct. To do this, the ecu consider that the value of the tps at certain point corresponds to a bigger apperture of the throttle butterfly. This new data is transfered to the tcu and the tcu disengage the tc lock as a pre-proggramed answer to this conditions. I'll change the tcu's chip before the ecu... any suggestions? any thinking?