ok..ive try this once and fried a potentiometer already..
i wanna make sure this time its right before i try it again..
here are some pics.




what does he mean by "(Before you hook up the pot's center pin to the ECU, use a multimeter to adjust the output to 2.5v.) "

does he mean not hook up the ground?
it wont have any power if its not hooked up to the ecu..
or am i just interpreting it wrong?..help!

aLSO..everytime i try to adjust the pot..its sensitive as hell(is this how it usually is?)

heres the site where i found the fix.
http://technet.ff-squad.com/code91.htm

 

nvm...much props to EE_Chris for helping me out..
turns out i just hooked up the wires wrong..