1997 4,0 SOHC Explorer full throttle problem

[Lash]

Hello

1st thank you for nice forum it has been most helpfull for me.

latest fixings I have done are fuel new fuel pump, sealing for water pump. and now my problem is with normally when I push gaspedal it sounds smooth and nice but when I push full throttle fast it hears bad. It cuts and spits.
I wish my terms are right but I wish somebody understand me

any idea where the problem could be?

Lash

 

[drdoom]

Have the fuel filter been changed?

 

[Lash]

Yes new filter has changed

 

[swshawaii]

Any check engine light or trouble codes?

 

[Lash]

No engine lights. I don't have the cable that I could see the codes if these is any

 

[2000StreetRod]

intake runner control?

Does the engine "cut and spit" below 3,000 rpm or just above 3,000 rpm? If only above then check the operation of the intake runner control.

 

[Lash]

Ok this is situation. I made engine run eventually. It was my own mistake when I changed the fuel pump so fuel line went wrong and engine did not get the fuel. but now is the problem that engine has shut down with no reason with middle of driving. little trottle and after little brake it shuts. any ideas? I checked that there are no trouble codes. always when AC goes on rpm runs under 650 rpm when gas pedal is up.