Weird Idle Problem?

[SpooledGSX2]

Hey guys, so to fill you in I got a new dsm! Its a 1991 Eagle Talon TSi. Its all stock, for now 108,000 on original motor! Runs like a champ. The only thing really confuses the hell out of me , so i figured I would turn to the trusty forums! So when stop for like a stop light for example my car will idle real high like at 1500 rpms for a second but then when i get to a absolute complete stop it'll drop back down to the normal 750? Its reall strange... what do you guys think?

 

[95blackGsTurbo]

Does your car have the Idle Position Switch still installed? My 1g did this as well. It would idle high until at a complete stop. Possibly in anticipation of getting going again. How long will it stay at 1500rpm if you just keep coasting?

 

[SpooledGSX2]

it'll stay like that till i completly stop