I trouble with P0106, P0442, P0455 - Grand Voyager Plymouth Cars & Trucks

Code p 0106 refers to manifold absolute pressure(MAP) sensor / barometric pressure (BARO) sensor---range /performance problem===causes --intake exhaust leak---wiring---MAP sensor---BARO sensor
code p 442 refers to evaporative emission(EVAP) system--small leak detected===causes --hose connections ---intake leak---EVAP cannister purge valve
it also refers to EVAP system ---large leak detected ---cap loose/ off ===causes --mechanical fault , hose connection EVAP pressure sensor
code p 0455 refers to EVAP system --large leak detected ===causes same as for p 0442 causes

In general Bill B.is correct about the codes .
However something else is going here .
You see P0106 is a code for M.A.P. manifold absolute pressure sensor yet it dosn't tell what the problem is .Their are 4 other codes that relate to this 05 07 08 09 .ckt hi ckt lo ckt intermittent ckt malfunction.
P0106 code is a performance range code its not saying its broken it says its not working correctly .
You also have EVAP codes 0442 o445 may not be in that system at all
I would say that you have a major vacuum leak some were it would cause all of these codes at the same time .
Look at your vacuum booster control unit for the power brakes its driven from engine vacuum look for hoses and vacuum resivsors