Check for fuel pressure to insure that the new pump operates properly. Make sure that the fuel filter was not installed backwards. The filter has an arrow to indicate fuel flow direction.
repalce fuel filter repalce fuel filter
I would replace the fuel filter and check fuel pressure.
Start by checking your fuel filter.
Engine will not start, engine starts but dies,,,,,, You are driving on the road, You give the motor more fuel and it does not gain power to the same rate as extra fuel that is given
Replace the Fuel Filter. I had the same problem with my 87 Wrangler... For me it turned out to be fuel filter was clogged even though it was semi-new.
couple of things check fuel pressure (fuel pump bad) check fuel regulator pull vaccum to it make sure no fuel is coming out, or could be a simple ign module, also check timing start with this things
the fuel filter is starting to go bad.
A lack of fuel will cause your engine to idle but cut off when you give it gas. The fuel filter may need to be changed. A dirty air filter can cause the same problem.
If your truck idles well but dies when you give it gas, it could indicate a fuel delivery issue, such as a clogged fuel filter, failing fuel pump, or dirty fuel injectors. It might also be related to air intake problems, like a dirty air filter or a malfunctioning mass airflow sensor. Additionally, a vacuum leak or issues with the ignition system could cause similar symptoms. A thorough diagnostic check would help pinpoint the exact cause.
First I would go with the fuel pump and the fuel filter. Check the vacuume lines. You may have unplugged crossed or not plugged something back in.
If a 250cc motor idles fine but dies when you give it gas, it could indicate a fuel delivery issue, such as a clogged fuel filter, a malfunctioning fuel pump, or a dirty carburetor. Another possibility is an air intake problem, like a blocked air filter or intake manifold leak, which can disrupt the air-fuel mixture. Additionally, it could be related to ignition issues, such as faulty spark plugs or ignition timing. Diagnosing the specific cause may require checking fuel flow, air intake, and ignition components systematically.
The air FILTER needs to be changed because it is dirty.