Quote:
Originally Posted by Jake Raby
Most 99s are not tunable, not all have the 1Mb file size, some are 512Kb sized and can't be flashed (5.2.2 DME). The 996 ECU (7.2DME) is a full 1Mb file, so you can't load it onto the 5.2.2 ECU.
You'd have to have a tune configured based from a 512mb OE file. I've had luck starting with a 5.2.2 BMW file, then building my tune tables off that.
Been there, and done that.
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I've been looking for a 996 911 ECU online and noticed my boxsters Porsche part number is identical to the 996 ECU's I've found (996.618.601.04). Is there a bosch number or other indicator of whether or not it's a 5.2.2 vs a 7.2?