Hi I am new to the forum and was wondering if anyone has ever heard of a procedure where you rev the car to a certain level 3 times and this can put the engine light out, I have had this problem on and off for some time and the garage has put it off as no problem has been diagnosed, it can also sometimes be put out by disconnecting the battery and touching the terminals briefly, but as I said I was just wondering f anyone had heard of the revving thing. Thanks

Hi boys,
Long time passed since my last post refering above subject.
Finaly,as I promised,the problem is fixed permanently.
After long time of rechecking of turbocharger,fuel system with fuel pump...last solution was to play with remaped parameters,where fuel pressure was adjusted to some optimal values.During 2months of driving the same error appear again.
Now map has been restored to factory parameters.Since that,no error appear.Chip has been removed