04rnr
New member
I don't need to use it to understand what it is, the theory behind it, and why it is not an option.
Remember that trick I mentioned about the police cars? pretty much the same thing. it's only good for a short amount of time though, hence my inclusion of the switch.
Plain and simple, it sends an "edited" signal to the computer from the air intake circuit input by changing the voltage with a resistor. It makes the engine think that it is colder outside than it really is. since colder air is more dense, the engine can get more of it and will add more fuel to make up for the extra air. The same can be done with the coolant temp sensor.
Why does it not work then? The 02 sensor will read that the engine is constantly rich and adjust for it. You might notice something for a little bit. On something like a chase where the extra power is needed, it's not long enough to affect long term fuel trim (LTFT) as it gets shut off after the chase.
For the record, I walked into the classroom once and saw this kid had ordered one. He had to fight to get his money back.
Here's what it looks like. You could build one of these without the fancy little box for under a dollar:
edit: note that there are several variations of these out there attempting to fool people that may know how to spot a resistor, but not a microprocessor on a printed circuit board. it's all the same though.
OK, so you have not, used this item, so you dont know, if THIS item works. Thanks.