is this correct idk what kinda of pump it is but i bought the car turbo so itts probly after market or something, but i get a 75 psi reading off a compression testor.

help me out

 

75 psi on a compression tester? You mean a fuel pressure tester? High fuel pressure occurs when there's a restriction in the system. Change the fuel filter if you haven't already and check the fuel lines for damage and bends.

 

yea on a tester that reads compression and it say on it value leak for the weak side an so on. changed the filter already, could my pump just be bad or clogged. it reads 75 psi and that was testing it from the other side of the f/p regulator the bottom side.

 

In automotive terminology, compression refers to the how much a piston squeezes the air/fuel mixture inside its cylinder. A "compression tester" is a gauge that screws into a spark plug hole to read how much a piston is squeezing its charge.

A bad pump won't cause high fuel pressure but a clog somewhere in the system can. Pressure is only increased past all stock parameters by a restriction in the fuel system or intentional modifications. The smaller the hole is that the pump is trying to push fuel through, the higher the pressure will be until the pump maxes out. Check the exterior of all of the fuel lines, looking for a bend or dent. Sometimes the hard intake line to the fuel filter can be bent when changing the filter or perhaps some rock was kicked up and dented a line. If you find no damage, check inside the lines for dirt and debris.

 

ok so its a bad pump i squeezed the return line and the motor dyed .