There is an old saying " if seems to good to be true , it probably is " this is the case with the product you are making reference too .. also the resistor that goes in series the temp sensor ,and the pluggin that goes into the PCV hose , and the fuel filter addin , and the fan that went under your carburetor ETC ETC .....
Lets ask what does the TPS do ...well the factory has calculated the volume of air that passes the throttle plate at many given openings , thus creating a curve to calculate fuel mixture . The theory is that the further the throttle plate is open the heavier the load on the engine. Some cars have a MAP sensor also , with a vacuum line on it that is also used for this purpose , The lower the vacuum the more load the engine is under..The MAP sensor is also a variable resistor that changes with how much vacuum is on it..The TPS is a resistor that increases resistance as the throttle plate is opened , and the curve is calculated on a given resistance is certain throttle opening..The Mass Air Flow sensor (MAF) is also a resistor in the form of a fine wire that has a measured resistance , as air passes by it cools , thus reducing the resistance , by measuring this resistance a curve can be made as to how much air is entering the engine..There are also many other sensors that are used in the decision making process of the computer , which controls how much fuel to add by varying the length of time the injectors stay open in a given period of time..
The MAF and the MAP sensors are major contributers to the mixture process, all other curves , like the TPS are used for fine tunning ...Varying these settings will do very little to help performance and probably do more harm than good..The best MOD along these line changes the computer program on how all these curves are used in the decision making process ..More commonly referd to as the CHIP MOD .. Save your money for this mod and you will see some performance change for your dollars..
Leave the Too good to be trues , for the suckers... :beer:
