I have replaced all the vacum lines(wow they were shot) and also the Fuel press regulator.
Now to get the fuel trim to go back to some kind of starting point do I have to disconect the battery???
Or will it self adjust in the other direction away from its limit.
I have erased the codes with the mt2500. I will drive the car to work tonight and see if the codes are gone tomorrow. I really hate disconecting the battery on this car it is like starting from scratch with everything

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88 W124 3.0
96 R129 119eng
06 ML350
98 ML320 sold
02 CLK55 amg