Hi guys im new here and im having a problem with my 92 lumina euro with the v6. The car has a stutter/hesitation when going more then 1/4 throttle. This only happens when the car is at operating temps. If the car sits for an extended period of time and i take it for a ride it feels good as new and doesnt stutter untill it reachs operating temps.. I changed the plugs/wires, cleaned the egr valve and cut off the catlyic converter because i thought it may have been clogged. Im not sure what is causing this but its annoying! Any help here would be greatly appreciated. Thanks..

 

do you have a check engine light?? change your gas filter, check the injectors fuel rail and regulator

when u turn your key and the fuel pump kicks in it should stay on for no more than 5 secs then turn your key off and count to 5 and try again if it has to pump back up, or turns back on, u got a bad regulator its not holding its pressure. the computer adjusts the injectors and changes the ignition timing as it warms up so that sounds like the problem. its oviously not getting enough gas (hesitation)

my 91 had the same problem except it did it all the time i found out i had 3 fully pluged injectors!
give that a try and post back what happens