High fuel consumption

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The ECU uses the fuel temp to vary fuel injection because warmer fuel is less dense, so it would chuck more in, so if the fuel is actually cooler than that then it would over fuel....
Maybe a silly question, but I had my td5 'remapped' by dynachip about 9 or 10 years ago, I think they basically set the injectors to max and it's an old school way of doing it, so essentially the remap is basically getting the ecu to overfuel at any given time. Is this correct? And if so I haven't had any running issues (except a bit of black smoke under hard acceleration) does this mean the injection to fuel temperature has been done away with?
 
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