I was flying this approach last night for practice.
http://204.108.4.16/d-tpp/1105/00785R26.PDF
all was going well on the autopilot
i put in 1450 for minimums(cannot select 1420-if would be nice to be able to put in actual minimums)
i put the MAP altitude in 4400
plane leveled off at 1420 but when i added some power it started to climb before reaching the MAP
i'm using a 430w
is this normal?
What should the autopilot do at minimums?

alan