Don't know if I'm in the right section here. I have a customer who has bought a 2012 Sprinter that had a fridge body. The fridge has been removed and he says the idle speed is 1100 to 1150 rpm in neutral. It is automatic and when he puts it in Drive it drops to 800 which is normal but back in neutral it goes up to 1150 again. Does anyone know if I can change the neutral idling speed with Xentry/Das?

Thanks.