So my car has been having trouble warming up to operating temp firat thing in the morning when starting the car at times, the bigger issue is also while driving on freeway or streets all of a sudden loses power and almost every time dies or stumbles with idle needle going up and down between 0-1 until motor turns off. I have replaced distributor, spark plugs, wires, fuel filter, fuel pump and it still does the same thing. Was thinking it could be a bad fuel relay or ecu even? Or vacuum leak perhaps.. Any ideas or how to fix this? Feel free to chime in. Thanks🤙🏽