Engine Idle Too High

Hellllppppp!!! What might be the problem in an engine (6A12 - Galant '95)having a high RPM in idle condition, the RPM is about 1,500....i tried adjusting the TPS but couldn't solve the problem. The adjustment screw on the throttle pulley is already at its minimum.....can someone please help me....

Thank you very much

look for vaccum leaks///hoses disconnected //rubber plugs broken/leaking
this will cause high idol

Trannyman....thank you very much for your help, i'll check all the items you've just mentioned...