The above pressure test, while valid, only verified the fuel system s ability to deliver fuel under low-demand conditions.

Knowing how your car's fuel pump operates is always helpful, but here are very convenient ways to check if it is broken or has stopped working.

If there are none, they will tighten the fuel-pressure sensor. If there is a fuel leak, a gasket between the sensor and the delivery pipe will be replaced and the sensor will be tightened.