Quote:
Originally Posted by Benjamin
This is a great write up! I have a 2000 Boxster S and and 99 C2 gauge cluster with a bad LCD, so I am in a similar boat to what you were. I say similar because evidently there could be some differences in the fuel sending units between 99 and 00:
"In addition, the very early C2 cars used a different fuel level sender than the one that is used in the Boxster. As a result, installing an early C2 cluster into a Boxster may not give you the most accurate fuel gauge reading (although I did install one on my project Boxster, and it appears to be working okay)." - Wayne @ Pelican
His swap was a straight cluster for cluster, not the board from the 986 and the gauges from a 996.
My 996 C2 board is part number is 996 641 103 03 70C. (I don't know if it is the "early" style or not)
Is this something that is potentially also correctable via EEPROM, or is that a hardware difference on the board?
Any help from anyone would be appreciated.
Benjamin
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Yes, the fuel gauge calibration is stored on the EPROM, copying over the contents of your old one will fix up the fuel gauge. However, if you use the Boxster programming on a 996 cluster, the oil sender and voltmeter will not work. I have found the correct bits to turn this on with the older unit, but not with the newer one. If I can get some more newer eprom dumps I may be able to reverse engineer it though.
You can tell the old unit from the newer by the color of the connector on the back. the older unit is Black, White and Blue. The 99 and 2000 should both be the older unit, so you are in luck.
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