Idle Issues. Need Help!

[Emilian]

The car starts, but does not want to idle. If I hold my foot on the gas it will run fine, but if I let go of the gas pedal, it will drop in RPM and stall.

Could someone please tell me what could possibly be wrong with it?

 

[hvyman]

The first step in diag would be to check codes.
http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx

Could be the isc.

 

[Emilian]

Already checked the code(s) and it gave me two. One had to do with the TPS and the other had to do with the water temp sensor.

 

[jetjock]

Might try fixing the codes before asking for help. Seems to me the more intelligent approach. I might be confused though...

 

[Wildfire007]

deleted.