car idles at 1500 all of a sudden ??

[BJ91T]

Well i took the 91 out for its daily cruise yesterday and it did great no problems ...(except for the cops following me for a little ways:aigo: ) anyway i get it home let it sit about 4 hours and decide to go get the mail and take the supra rather than walk down out 2.5 acre driveway so I get it and it starts up and idles at 1500 like a cold start but it stayed that way even during todays drive (about 10 miles) Did my ISC just take a crap???

[BJ91T]

BTW: no vacum lines unplugged or anything of that nature

[Evilempire1.3JZ-GTE]

closed loop/ open loop problems
vacume problems
stuck throttle problems
improper adjustment tps and idle set screw or throttle stop screw

start investigating your

AFM/Computer Codes/vacume/ BVSV valve you look at them wrong they break/idle set screw at TB idle set screw for throttle cable. see if your car is open or closed loop if your water temp sensor is hooked up.

[BJ91T]

well when i shut the car off i can hear the Idle air thing clicking about 4 or 5 times i am not sure of it supposed to do that or not??

[bluepearl]

well when i shut the car off i can hear the Idle air thing clicking about 4 or 5 times i am not sure of it supposed to do that or not??

Yes, it's supposed to do that.