[dennybam]

The fuel pump is in the tank. you can get to the wires under the back seat on passanger side. You can hear if the Fuel pump is running or not for the first 5 secounds after turning the ignition to the on position. To test pressure; purchace a gage from Autozone for $37.00 but it will not fit your car because the 92 metro, has no shrader valve to plug it into near the throttlebody. There are 2 black rubber gas lines atached from the fire wall to the throttlebody. one is thicker then the outher. The thick one is the input from the fuel pump, the thin one is the pressure regulators return line back to the gas tank . Between the 2 on the throttle body is your pressure regulator next to the injector,the regulator is a diphram, controled by the engines vacum;the harder you push on the gas the less vacum that you have, in turn the regulator produces more gas pressure. The fule pressure required is between 23#PSI and 31# PSI. To test the pressure with your new gage, you must adapt it to fit your car. You will need to buy 1.5ft of 3/8" gasline and a tee that will screw in to your new gage. First remove the feed line to the throttle body. Reinstall the new 3/8" gasline inplace of it; cut it in half and install the tee between the 2 half's; attach the gage and clamp hoses. Turn the key on it should read between 23 and 31 lbs. It should hold that pressure level for a while on its own. If it it is low or wont hold, it has eather a weak pump, or a bad pressure regulator. to test the pump; clamp the return line with a pare of vicegrips. then turn on the ignition the gage will go up to 60 lbs or more if the pump is good; and this would mean that the regulator is bad.
Also:To test for a cloged gas filter remove the gage put the gasline in to a milk jug and turn the key on this will show the flow rate; if it is flowing then it is not cloged. I hope this helps you!