I need to clean my tpi how easy is this on 1999 Volvo V70 XC

The car idle drops and dies seem to be at idle and low speeds

Asked by for the 1999 Volvo V70 XC
I assume you mean cleaning the throttle body? If so, it's not too difficult, but it is very tight up there. I suggest removing the radiator fan shroud for easier access. I bet there are good tutorials on the Volvo forums, look at Mathews Volvo Forum.