Hey Downeaster, do you have any "inside information" about this throttle lag situation? The newest DME flash didn't fix my issues. Thanks.
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Originally Posted by Downeaster1
Hey, thanks! So that repair is worded really awkwardly. A "DIAGCODE" is a warranty term that identifies a particular issue. You don't look up symptoms by a DIAGCODE; you search by either affected bulletins or symptoms. The repair will then be followed with a DIAGCODE that will tell the warranty administrator how much to pay the technician. I don't recall what specifically the bulletin is that requires an update, but what it does essentially is reprogram the DME and EKP to accept a higher fuel pressure and increase the idle RPM by 82rpm's. This, in turn, will correct weird idle issues.
It's unlikely that you will gain any sort of performance gain from this, as fuel pressure and idle are the only internal variables that are changed. I've personally confirmed this by viewing raw data between pre-updated and post-updated DME's.
Additionally, there is some talk as to whether the PPK software could have been "accidentally" downloaded to a DME. What happens when a customer requests a flash of the Performance Power Kit, is the dealership will send a request and a repair order number to BMWNA stating they have a customer who wants a PPK downloaded. This request is put through to parts department and is confirmed by teliservices. The requested car's VIN is added to the master list, and in return is sent back an FSC code. This FSC code follows a specific algorithm that is based on the check digit in the VIN and the last 3 numbers. The FSC code is then entered into the dealerships ISTA/P in order to code the vehicle properly. Upon completion, the Vehicle Order (commonly refered to as the "VO" contains an addition to the top saying that the PPK has been downloaded and authenticated. Due to the complexity of this whole process, it's impossible to add the PPK by accident.
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