February 12, 2010
Is There Any Drawback To Installing Fuel Saving And Hp Increasing Modules Or Chips In Your Car?
I am looking into purchasing a module to tune my vehicle’s ECU to allow the engine to run at stoichiometric levels which maximizes performance and improves fuel economy simultaneously. Sounds too good. Is there some disadvantage of buying this that I’m not aware of?
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Filed under Gas Conservation FAQ by on Feb 12th, 2010. Comment. 
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Comments on Is There Any Drawback To Installing Fuel Saving And Hp Increasing Modules Or Chips In Your Car?
Yes! The original chip will use a set of algorithms to determine the best fuelling, injector timing for the vehicle in any situation based on input from various sensors. The modified chip will change these algorithms to a range that is different (probably less acceptable) than the set used in the original chip. These will be biased towards performance at the expense of what is acceptable to various components eg exhaust (overfuelling may get you better performance but will damage your catalyst).
On the other hand to run economical the chip may deliberately make the car run lean which may be good for fuel economy but will raise the temperatures of your cylinders and exhaust to high temperatures possibly causing damage and at least accelerating wear of components.
the hp increase for the cheap modules doesnt work and your manufacturer has done all that for you…dont dew it unless you get a camshaft replacement
You get one or the other, but never both. (Increase HP, or save fuel.) The majority of them don’t perform as advertised. If there is any warranty left on the car the modification may void it.