What is the problem when car is losing power when it warms up stumbles after accelerating in park and sometimes surges when driving and when in park accelerating surges after 3500

have you checked the throttle body ? it may be sticky or stuck.

If u the read Information I already replaced the throttle body

have you checked your thermastat ? and ecm would seem a good place to assume the problem is happening have you checked it for codes ? and it if it starts to stall out when its warm and not when its cold it would come to think its most likely a tempature sensor thats gone faulty or got faulty wiring to it.