89blkstang

this was on my car when i bought it and the guy told me it was a fuel stabalizer box but ive never heard of one. it plugs into my tps. the guy told it increases throttle response and when you hit the gas the green light lights up ad when its just idiling the the light is red but im not sure any help would be appreciated.

mustangsneverdie

my buddy has one on his car and I asked him what it did and he said he didn't know,so I'm a little curious too

86 5.0L

probably some sort of variable resistor...

89blkstang

whats that?

86 5.0L

it changes the voltage being read, the gimmick is that it provides sharper throttle response, but I doubt it does anything and setting your TPS correctly probably is a better idea

89blkstang

ok thanks for the help.

lxman1

Yep, it tricks the ecm to think it's at WOT at 75% throttle. No actual power gains from it.