Maximus Aurelius

I have a 1999 Acura 3.2 Tl and have a fairly new issue engine light is on and I scanned it and it is a p1739 problem in 3rd clutch pressure switch circuit. I have driven it and most of the time that feeling when letting off the gas doesn't happen but wanted to get some input. Thanks. Oh and I have been getting a p050 idle control system for quite a while, the tps or iac is part of the throttle body and can't be replaced separately but I replaced the other one which is a seperate part, but I just ca t remember which is which. Thanks for any help.