[Shotimes] High idle problems

[Donald Mallinson]

Got a note from a member that is having problems with their 95 ATX SHO 
with high idle.

It is at 1000 rpm at a stop in gear, and 1500-1700 in neutral. 

On light acceleration, the car gets to 35 mph at about 2000 rpm and 
doesn't want to shift to second gear.

The owner recently replaced the IAC valve, TP sensor, VSS sensor, upper 
manifold gasket, 

Oxygen sensors, Cam Poisition sensor, and ECT sensor. He tried to find trouble codes but their are none in the computer.

Any ideas?

Don Mallinson