The tuning chip is bad for the engine ???????????

Hello, I was finding out to place the Tuning chip to my PEUGEOT 306 XR 1.8 16V Model 99, and everyone says it is good to place it to any car (with electronic injection, that is, it possesses the on -board computer) the chip. And look everywhere, and says that it increases in a car 12 % of power in each march and in turbo cars to 24 %, and that it reduces consumption, and that pollutes less, that is fine, but find out through a mechanical friend that, yes, you get all that, but that is bad, since when putting the chip, it makes it less fuel, that is why it spends less) That more power is obtained, but what nobody tells you, is that in the engines the fuel also serves to snack the head of the pistons, and if you take out the fuel, you achieve that they are cooling less, and something else, the engine comes from factory with that power, (let's think a moment that the engine is a pump that is designed to explode with a force of 100, so to speak, and if We detonate with a force of 120, which is not designed, we get it to break faster), well going to the grain, I do not know very well how all this is, just finding out everywhere, they just know that it is good (maybe because they want to sell it to you at all costs) but nobody tells you this, I hope someone can help me understand this. And that they get over if I put it or not, thank you very much, and if what I said this bad, sorry, I am electronic, not mechanical, and if anyone knows well, it explains it to me, Salu2

Here I leave you the response of the other post:

Look, in all "modern" cars, engines are controlled from ECU or computer, also called the switchboard. All the relevant parameters such as time/amount of injection, ignition point, turbo pressure, regulation Lambda etcda etc. This software develops the manufacturer for each type of motor individually. The manufacturer in the foreground cares about creating software that includes the simulation of a maximum number of situations and management circumstances. That means changing factors and conditions such as gasoline quality, time impacts, different, specific rules on emissions in different countries and more things like that. Then the manufacturer there is facing a difficult situation, where he has to look for a commitment to include each and every one of those these factors (in their software). An more the task is difficult taking into account different handling habits, with a sporting style for example, it still has to comply with environmental laws, but it must also guarantee that a tourist abroad with worse quality can follow his path by pulling a trailer pulling a trailer by mountains.
Commercial considerations and economics calculations are also present in the development of the software and causes (in conjunctocon other factors) that serial (mass) motors have a great variety (tolerance) with respect to their power and strength. To balance these tolerances the software programmer for the series includes some limitations, which results in that all engines provide (almost) the same power and the same torque. The torque, for example, is generally contained by the ECU, for convenience.
From everything mentioned above, it turns out that software for the standard computer is really only a commitment. Here in Mexico the Volkswagen produces units of the same model that either walk here in the tropic or go to Alaska, all with the same program.

This is where the work of the chiptuner begins: he modifies, adapts and changes the software in a specific way with respect to the real conditions in which a vehicle is located, respecting tolerances, but in a more individual way. It is very important that all protection functions such as bellomleo for example are still respected.
The specific adaptation of the maps as well as the unlock of torque limits and speeds results in more power and reuses consumption at the same time (slightly).

The explained is obvious that a chiptuning does not endanger the motor or other components in a foolish way. Fact is that people with a greater power car also use and sometimes abuse, which can result in greater wear and premature decomposition.

That is why it is very important that the Tuner really knows what he does. This is probably the most difficult to find a professional and serious company. These are also going to give you a guarantee on their modification, which in general must include engine, grant train, turbo, switchboard.
Finally, I personally do not recommend chiptuning for atmospheric cars. Average coming only 7% more power can be expected and this is not worth it according to the point of view. But everyone his taste.

I hope this answer is for something, greetings, judge

Good!

I am also considering the chipear my vetusto stilo 1.6 with its 2000 km. At this point it already gives me a little the same if I peta, but I have to admit that it still goes like silk and grabs in a curve like a tick, so I do not finish deciding.

As Judg comments, the most difficult thing is to find some trusted workshop, because one thing that I take for granted, and I hope this helps you, is that the engines today will be manufactured with a tolerance that supports the extra power that the chip would give it.

But, it is true that power improvement is very small.

Salu2