s-afc reading 100% throttle at idle

[ALLABOUTDAZ]

i have a sr20det swap on my 180sx
its had a Apex S-AFC installed for a while already
and now recently it has been reading 100% throttle at idle and it will not move even when you rev it up
it is also eating up a lot of fuel most likely because it is showing 100% throttle so i believe it is throwing all that fuel in
can some one help me figure out what is wrong with my car?
thank you

[Joel 180]

either your afc is wired up incorrectly or the TPS is broken

[ALLABOUTDAZ]

i have checked the wiring on the S-afc and it is all wired correctly
i also unplugged the tps to see if that was what was broken but when i unplugged it the throttle % went down to only 76% and that is at idle with the tps unplugged and when i plug it back in is goes to 100% again so i have no idea what could be wrong
do you guys think it is the TPS that broken or something else?
let me know thank you

[wedge02specv]

The S-AFC can be used with two kinds of TPS signals. Either 0-5V or 5-0V, so check your setup to make sure it is reading the right one. That's my guess for you.