![]() Now even though its fine for its regular city commute. I have Maruti Vitara Brezza zdi, bought on last day of March 2016. Personally I would say that if a remap is done right, it should be better than a tuning box. Tuners would say we don't fool ECU and have better control. Tuning box guys can say we don't lift the safety limiters like how tuners do. Safety aspect : Tuning box vs Remaps : This could be debated for ever without a conclusion. This is one of the reason why people say more FE post remap. To explain in a simple way, suppose 70 mg fuel is injected in 1 ms, now you change it to 2 ms.So you would be actually injecting double fuel, but the ECU thinks you have injected only 70 mg. You will understand it better when you know the Parameters and axis in injector duration map. This is one of the easiest way to remap and you are fooling the ECU here. All they do is change one map : "injector duration". Do you know that even with a remap, you can fool ECU? I have seen many tuners using this method for our 1.3 Multijet engine. Remember a bad remap is dangerous than tuning box. And people say with remap everything is good, more control etc. ![]() Yes, a tuning box fools the ECU to give more power. A remap takes EVERYTHING into account before extracting more or less power from the engine. A tuning box of this sort comes with circuitry to 'fool' your ECU into increasing fueling or boost pressure (in a dual channel box, or just fuel pressure in a single channel box) without really checking the other parameters.
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