Why is car stuttering after fuel pump replaced

How about fuel filer?

check fuel pump pressure- fuel filter --air filter --egr valve if carboned up clean or replace and cat converter feel the exhaust if feels restricted may be clogging up

Check the fuel line pressure it should be 55lbs and i suspect a weak fuel pump.never seen one of these cars in my life so i cannot tell what is where but do check the fuel line pressure

yes the egr valve will but you will have to replace it more than likely

any number of things from fuses to sensors, in my experience it sounds like some power cells in your battery went, battery and alternator both may have to be replace. also could be clogged fuel filters to a bad fuel pump. literally i could go on they make these things so complex now

If your care died with stuttering, then I would suspect a fuel flow problem. So the fuel filter or the fuel pump. If it just stopped with no indications then I would suspect electrical. So the coil or a relay.

Vacuum leak? MAF sensor dirty? Should be some codes. don-ohio

check for 12v constant at your fuel pump if you are not getting that replace your relay.
if you are getting 12 volts at your fuel pump the fuel pump is possible to run tuel it gets warm then shut down to a lower rpm I would then replace the fuel pump

This is Caused by your Fuel Filter, Fuel Pump, Or Both.

I hade the same problem, but I figured it out, My car is a 1992 chevey lumina Base modle sadan, v6/3.1L This car is electricly based, regardless of your problem replace all Fuses and Relays your fule injection, heater cor, every thing. trust me.

MY CAR PROBLEM: car would stutter and want to die every time I came to a stop, or slowed down. When I start the car it would idle really high, when I shift in to drive it would go back to normal, for a little bit. I checked my electrical center located on passenger side under the hood. I found that my fule pump relay had blown out. this is the main reason for fule pump going out. theas fuses are the real thing that makes this car run. replace them all. thay are like 20.00 dollars a pop but it will save you hundreds.

SECOND: bought a bottle of fule injection cleaner. spray this into your throttle body, connected to the air filter. lots of gunk. after that car stopped stuttering and has not died yet. I did my maintance on 7/15/08

good place to start. good luck