Quote:
Originally Posted by PPMKING
Piggybacks are marketed as untraceable, but we're being naive or in denial if we think BMW doesn't data log the car operations regardless if stock parameters were changed or not. It comes across like BMW is not aware of piggybacks lol. Would they pull data logs? As mentioned earlier, probably depends on what the repair is. Injectors, sensors, fuel pump? Probably be fixed no issues. Engine replacement? I would think so. Why would anyone logically think BMW would just pay $30k without pulling data logs to determine the engine failure? Increased boost, timing - easy for BMW to point to a tune.
That being said, piggyback tunes, including Dinan are not known to cause major engine failure based on anecdotal evidence from forums.
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I guess the million dollar question is what are these data logs and where do they reside and what do they contain? You'd think this question would be simple enough to answer or for the piggy back manufacturer to figure out.