1996 GMC Yukon "97 chrysler concorde high idle" Questions

97 chrysler concorde high idle around 2k in park high idle around 2k in park, put in new AIS motor didn't help, can't find any vacuum leaks? I don't want start replacing all the possible sensors ...

97 chrysler concorde 3.5 bad accel off idle , ok on high end replace computer replace map replace o2 replace wires good fuel volume test good pressure 43 psi replaced intakes no hard starts starts ...