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Discussion Starter · #1 ·
I'm looking at doing my own ECM tuning since nobody does the kind of tuning I need anymore. I would also really like to tune the TCM, but I think it's a bit beyond my abilities.

I've searched and read but can't seem to figure out if the ECM can be tuned by me and the TCM tuned by someone else separately. I'm assuming they'll want to lock, which is fine, but I can't tell if only the TCM can be locked or if the two are linked. Anyone know?
 
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