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Thread: Question about Mask ID

  1. #1
    Electronic Ignition!
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    Question about Mask ID

    Hey Guys, Was thinking the other day about after you burn a chip with the tune you have developed for your engine with the mask ID set to $AA how does leaving it as $AA effect the ECM in the long run without changing it back to the original Mask? ($OD in my case)

  2. #2
    Super Moderator dave w's Avatar
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    Leaving the Mask ID to $AA does not affect anything.

    dave w

  3. #3
    Fuel Injected! steveo's Avatar
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    the bin checksum is a good thing, if the prom ever became corrupt, you'd be warned about it and might end up in limp mode or whatever.

    how often do bins become corrupt? not very often at all.

    i'd change it back eventually but wouldn't lose sleep over it

  4. #4
    Electronic Ignition!
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    Thanks, this may explan the problem I have with the autoprom when tuning with the $AA mask. I may have a corrupt file.

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