It is simply a resistor (that can be bought at Radio Shack for less than $1) spliced inlne to your IAT sensor. It tricks the ECU into thinking the air is colder than it actually is, and therefore the ECU adds gas.
Frank McCoy aka Mod-deth aka Mid Life Crisis aka SVT Doood aka mcgainer is a SCAM ARTIST
Pre98 Zetec - Some Mods
