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Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

How to check for flashed ECU?

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Old Nov 1, 2011 | 06:30 PM
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S2K2EVO's Avatar
S2K2EVO
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How to check for flashed ECU?
I am looking at a used X how can I find out if the ECU has ever been flashed before?
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Old Nov 2, 2011 | 08:33 AM
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read the map and compare it to a factory map of the same ROM ID

There is also a flashing counter, but neither of these will necessarily tell you the whole story.
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Old Nov 2, 2011 | 08:42 AM
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Check Sum count.
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Old Nov 2, 2011 | 12:52 PM
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I can tell if it's been tuned by looking at the rom.
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