Prerequisites: working INPA installation with winkfp, interface cable, 12v to DME pin 60/diagnostic connector pin 18.
MS41.1 and MS41.2 are the same hardware (all are labeled MS41.1 on the outside), but winkfp won't let you flash MS41.1 to MS41.2 because it looks at the file DATA\MDS412\MDS412.HWH to make sure the hardware number currently reported by the DME is listed there:
1405491A F , 1405854B F , 1406464C F ;
You can change the first number to whatever is on your current MS41.1 DME and it will let you flash:
1437806A F , 1405854B F , 1406464C F ;
I've done this *many* times and it works great. A similar process should work to flash MS41.2 to MS41.1, but I've never had the need to try.
S54 swap DME flashing - $100
S54 swap CAN interface board (for proper A/C & check engine light) - $275
e36 SAP sim/secondary air pump simulator: $75 - standard or $170 - plug & play
e36 post-cat O2 sims: $115 shipped, plug & play
Genius. This should help out the m3 guys with finding replacement DMEs as ms41.1s are more abundant for reasonable prices.
I'm having trouble getting the 20 pin connector to work on my m3. I bet I could install one of my spare 328 dme's in my 328 vert and use this procedure to flash it to ms41.2
Bleed your cooling system http://forums.bimmerforums.com/forum....php?t=1709482The ULTIMATE OEM Alarm/Keyless thread http://forums.bimmerforums.com/forum....php?t=1792200
Mr. Peterson you continue to be the Man!!
97 BMW M3 (s52b32) - VF-Supercharger kit ( Vortech V2-SQ supercharger, 32 pound injectors, VF tuning ), VDO/LeatherZ Gauge Kit (Oil Temp, Oil Pressure, and Boost), UUC Motorwerks RSC36 Exhaust, Stainless Steel 6-2 Exhaust Headers, Bilstein Sports, Rear Adjustable Camber bushings, Wheel Spacers 10mm in front 25mm in back, Uprated Clutch, UUC Shift Knob, Short Shifter and Clutch Stop, Cross Brace, Mason Engineering front strut bar, Contour Wheels, Euro Ellipsoid (Angel Eyes) HID Headlights, braided steel brake lines, aluminum thermostat housing, mishimoto aluminum radiator and silicone hoses and a partridge in a pear tree
Should work for flashing, probably better to build a bench flasher, or better yet - find out what is going on with the 20-pin.
The cheap salvage yard near me (Pick N Pull) only has OBD1 cars, but the connector is the same - just had to hacksaw/file the housing a bit where it slides into the DME sort of like a hinge. I pulled all of the pins I didn't need and installed a SPDT switch that lets me turn the DME off, on, or on with programming voltage to pin 60.
S54 swap DME flashing - $100
S54 swap CAN interface board (for proper A/C & check engine light) - $275
e36 SAP sim/secondary air pump simulator: $75 - standard or $170 - plug & play
e36 post-cat O2 sims: $115 shipped, plug & play
I have a connector sitting on top of my Bentley manual just waiting for me to do the same thing. I need to find a inexpensive power source. I'm thinking maybe an old desktop computer.
Bleed your cooling system http://forums.bimmerforums.com/forum....php?t=1709482The ULTIMATE OEM Alarm/Keyless thread http://forums.bimmerforums.com/forum....php?t=1792200
I've been happy with this - http://www.amazon.com/Tekpower-HY180.../dp/B000CSQK5E
S54 swap DME flashing - $100
S54 swap CAN interface board (for proper A/C & check engine light) - $275
e36 SAP sim/secondary air pump simulator: $75 - standard or $170 - plug & play
e36 post-cat O2 sims: $115 shipped, plug & play
97 BMW M3 (s52b32) - VF-Supercharger kit ( Vortech V2-SQ supercharger, 32 pound injectors, VF tuning ), VDO/LeatherZ Gauge Kit (Oil Temp, Oil Pressure, and Boost), UUC Motorwerks RSC36 Exhaust, Stainless Steel 6-2 Exhaust Headers, Bilstein Sports, Rear Adjustable Camber bushings, Wheel Spacers 10mm in front 25mm in back, Uprated Clutch, UUC Shift Knob, Short Shifter and Clutch Stop, Cross Brace, Mason Engineering front strut bar, Contour Wheels, Euro Ellipsoid (Angel Eyes) HID Headlights, braided steel brake lines, aluminum thermostat housing, mishimoto aluminum radiator and silicone hoses and a partridge in a pear tree
S54 swap DME flashing - $100
S54 swap CAN interface board (for proper A/C & check engine light) - $275
e36 SAP sim/secondary air pump simulator: $75 - standard or $170 - plug & play
e36 post-cat O2 sims: $115 shipped, plug & play
My bench hookup draws about 500-550 mA when ignition is on
I found this thread because it was quoted on the OpenMS41 website. I want to add that flashing between the 1437806 and 1437804 MS41.1 versions works using this method too. I haven't tried flashing MS41.2 to MS41.1 either, but I'm sure it works. Also, just FYI: flashing between MS41.1 and MS41.0 with WinKFP does not work. It bricks it. It cannot be recovered with Expert mode.
I couldn't get it to work through the OBD2 port even with voltage applied to pin 60. So I added a 20-pin port to the bench flash harness and wired pin 60 direct to the port from the ECU, along with a switch so a simple K/DCAN cable can still be used for other things. Then the 20-pin port is connected to the ICOM Next C adapter. In the WinKFP settings I selected the programming voltage options because the ICOM C provides that. I've read clones may not work like that, so make sure you have the genuine ICOM C.
IMG_7922r.jpg
Last edited by Andy325is; 05-05-2021 at 05:15 AM.
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