Cold engine idle troubles

[Geno750]

I've had this problem since I had the car running. When first starting while the engine is cold it will idle fine(1100~1300rpm), but if I try to drive it before it has warmed up it will die if I clutch in and let off the gas. If I let off the gas completely and get back on it the car bogs and misfires for a second or two then runs fine again. To avoid having the car die on me until it has warmed up I just sit and wait but I'm starting to wonder if there is a easy solution to this problem. Also, while warm the idle is between 790~860rpm (AVC-R).

I've checked tps(new sensor) voltage, but my volt meter measures in 5v increments so getting the closed throttle position may be a little off. There are no known vacuum leaks, as the car makes and runs under boost just fine.