Hello people Knows one the chip tuner “OBD 2 Motortuning”, in D-21714 Hammah, or someone has already had experience with this company. Please report, positive as well as negative. My experience is now very negative. I had my A6 2.8 E Q equipped with a chiptuning from this company. Since then, the error, which is clearly caused by the chip, “control device defective” is stored in the error memory. Also the repeated replacement did not bring any improvement, it was rather The engine didn’t run as nicely as I used to. With the normal chip, the error is not present. Now, after long nagging, I got a new chip about 3 weeks ago, but I no longer feel any difference to the serial chip. I had this chip read out from another chip tuner. It was found that the values that cause a performance increase, injection and field of identification, were no longer changed and on the serial Nievau si and except for the check sum. I was told that with this software adjustment there is no increase in performance. My opinion is that this is going slowly towards fraud or what do you mean. mfg webalex