Admittedly, this S52 is attached to an e36 - I wasn't quite sure where to post it here. e36 Forums and RomRaider have been quite useless.
I have a 1997 M3, which has recently undergone a manual conversion. In the quest to eliminate all related warning lights, I have recoded the majority of modules in the car (EWS, ASC, etc). However, the DME is proving to be an issue. I have attempted several methods to reprogram it including using DIS, WinKFP, and the MS41 Quickflash tool. Utilizing the stock DME, I was unable to complete a flash using either WinKFP or DIS. In DIS, cor example, I was met with an error of "clearing the control unit cannot be performed correctly."
This led me to using MS41 Quickflash. I began with a spare DME acquired from a 1997 528i. To my knowledge, a MS41.1 unit is able to be converted to MS41.2 simply by flashing it. I proceeded to flash this DME using a full read available on the RomRaider forum (flash is from a manual trans e36m). I was able to complete the full flash and then successfully pass an OBD emission test to register the car. However, it was fairly obvious that the car was down on power, along with losing air conditioning functionality. Assuming I would be able to correct at least the A/C issue with a modified partial flash, I did a partial read and corrected byte 4. Partial flash completed, I fired the car up to be greeted with no A/C again. Through a few tests, I found that the DME will not actually accept any changes I make to the tune. It also still scans as an MS41.1 from said e39.
Ideas/Input? Obviously I can just mail my DME off and have a manual transmission flash performed, but I would much rather accomplish this myself.
I have a 1997 M3, which has recently undergone a manual conversion. In the quest to eliminate all related warning lights, I have recoded the majority of modules in the car (EWS, ASC, etc). However, the DME is proving to be an issue. I have attempted several methods to reprogram it including using DIS, WinKFP, and the MS41 Quickflash tool. Utilizing the stock DME, I was unable to complete a flash using either WinKFP or DIS. In DIS, cor example, I was met with an error of "clearing the control unit cannot be performed correctly."
This led me to using MS41 Quickflash. I began with a spare DME acquired from a 1997 528i. To my knowledge, a MS41.1 unit is able to be converted to MS41.2 simply by flashing it. I proceeded to flash this DME using a full read available on the RomRaider forum (flash is from a manual trans e36m). I was able to complete the full flash and then successfully pass an OBD emission test to register the car. However, it was fairly obvious that the car was down on power, along with losing air conditioning functionality. Assuming I would be able to correct at least the A/C issue with a modified partial flash, I did a partial read and corrected byte 4. Partial flash completed, I fired the car up to be greeted with no A/C again. Through a few tests, I found that the DME will not actually accept any changes I make to the tune. It also still scans as an MS41.1 from said e39.
Ideas/Input? Obviously I can just mail my DME off and have a manual transmission flash performed, but I would much rather accomplish this myself.
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