my brothers tj 4.0 5spd will not rev over 3G i have same jeep and it stalls at 5300 whats wrong with his?

What is your question?

we have replace all sensors on his engine nothing helped? iac,map,tpc,o2,and the coolant temp sensor?? plus cps in distributor

What makes this problem better or worse?

constant after we put cps in the distributor

How long has your 1999 Jeep Wrangler had this problem?

two weeks