If we have flagged your car for possibly having low fuel pressure, you should take the time to actually check the fuel pressure. Most people assume that if the vehicle has fuel pressure at an idle it will also have fuel pressure going down the road, but this logic is flawed.
A fuel pump too small for the setup, or a weak fuel pump, can likely easily deliver fuel if the demand is low… such as at idle. The way to check fuel pressure properly is to hook a gauge up to the car where you or better yet a passenger can see it while driving. Then watch the fuel pressure under wide open throttle and high RPM. Your local parts store may have a fuel pressure gauge you can borrow. We have found this fuel pressure test kit https://amzn.to/3I5vRhS That is an affiliate link that cost you nothing extra but helps us out. This kit will allow you to run a sensor off the fuel rail with wiring that can reach inside the car. This is a very safe way to do this. If you bring a mechanical fuel pressure gauge inside the car you run the risk of leaking fuel inside the car.
