I have an 89 5.0 with an automatic I just bought. The only thing I know for sure the motor has is the cobra intake and a/c eliminator kit. My question is in the morning when I go to leave it acts as if its carbureted or something. When I leave ifI punch it will spit and sputter and acts like its gonna die. It also vibrates like it has a bad miss till it warmsup. Now if i punch it and hold it and run it up till around 6,000 rpm then it clears up and runs fine. If anyone can give me any idea what might make it do this I would appreciate it. Thanks

 

yeah dude that's smart rev'in a cold engine to 6k

 

I do it after it warms up if it wont clear up on its on

 

Sounds like it does it b/c itd COLD out,dnt worry mine does the same thing, if its fine when its warm, then you have no problems...........
go here- www.fordfuelinjection.com
read on how the whole EEC and its system works in relation with its sensors, maybe youll find something to help, maybe not good luck

 

ill check that out

 

Troubleshooting Intermittent Engine Problems, Larry Carley, August 2003

 

is your check engine light on? any codes? i would first check the fuel pump, also clean out the throttle body probably have alot of blowby in there

 

Yeah check ignition first, have your check your cap and rotor? may be corroded, spark plugs? i know my car have 2 bad plugs and Bosch Platinum 2 made a world of difference.
good luck.........