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3 Different part numbers. Which ECUs work for what years?

I've seen 964 ECUs with 3 different part numbers:
96461812182
96461812450
96461812471
What years are each of these good for?
Old 10-29-2017, 06:52 PM
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Here is what I copied from the PPS a while back.

3.6 DME Part Numbers
If the third set of digits is 123 -- no drive block. If they are 124 it has drive block.
RoW tip DMEs are 993.618.115.XX or 993.618.120.XX.
Steve Wong: For 96-98 ROW VRAM, .678 DMEs are non-Driveblock and the .679 DMEs are Driveblock. The only difference between the two DMEs is the chip inside. The coding on the .679 chip DME has the Driveblock code. Changing the chip inside to a .678 DME changes the DME to a .678 unit and completely removes the Driveblock coding. Your .679 chip is what prevents your car from running. This also applies to the European 993RS -- .677 DME for Driveblock and a .697 unit for non-Driveblock.

Old 10-30-2017, 07:42 AM
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cmonref: I don't understand your reply. My question concerned the 964, which was manufactured between 1989 and 1994. Your response seems to address the 993, which followed the 1964. Is there info on the 964 buried somewhere in your post Thx
Old 10-30-2017, 09:24 AM
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Quote:
Originally Posted by sandiego View Post
I've seen 964 ECUs with 3 different part numbers:
96461812182
96461812450
96461812471
What years are each of these good for?
I could be wrong but don't recognize any of those numbers as DME for the 964. In fact they don't show to be a 964 or Porsche part number. At least not one that is currently available.

91161812404 is for the 89-90 964
96461812403 is for the 90 up C2/C4

AFAIK
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Old 10-31-2017, 04:25 PM
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My bad. The Bosch part numbers are:
0261200182
0261200450
0261200473
They come from the ecudoctors web.
Old 10-31-2017, 07:06 PM
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Quote:
Originally Posted by sandiego View Post
My bad. The Bosch part numbers are:
0261200182
0261200450
0261200473
They come from the ecudoctors web.
That is better. The info I have shows Bosch part number

0261200450 = 91161812404 = 89-90 C2/C4
0261200473 = 96461812403 = 91 up C2/C4

The 0261200182 I believe is for an earlier 3.2.
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Old 11-01-2017, 04:40 AM
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I have a 911.618.124.01 in front of me which came with a 964 engine I bought. Engine number 62L07089. Is this EMU correct for this engine? Thx.
Old 11-02-2017, 11:44 AM
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Old 11-03-2017, 05:16 AM
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