It wont idel and dies when it does on 2000 Dodge Grand Caravan

It ran fine when it is first started but when warm it backfires thru intake and exaust so I replaced the cam and crank sensors and the problem got worse. I also replaced the idel controle assembly. It is worse then before. The PCM has maybe 1000 miles on it.

Asked by for the 2000 Dodge Grand Caravan
stop... you are replacing parts for no reason. go get a real diag and a bid for repair it may be a simple fix instead of all the parts you are suggesting