Ok so i bought a 1980 280zx with a fuel cell in it because the owner was to lazy to clean the OEM one. So the problem is the car wont start i hear the fuel pump but i feel no pressure in the fuel hose. Also i heard if the TB boot has a hole the car wont start but i fixed that. And i would like to know how to check the fuel pressure regulator with out the device to check for pressure. And also would the fuel pump cause this

 

Is there fuel in the fuel cell? Enough to supply fuel to the pick up?

To check for fuel, pull the line at the fuel rail (from the fuel filter) and hold it in a can while someone cranks / cycles the ignition to ON. There should be a steady flow of fuel. Also check for spark at all cylinders.

 

i checked all of that i do get fuel but i just notice i have no fuel filter lol i suspect the injectors are clogged

 

And you have spark at all 6 cylinders?
Compression check?

 

Yes i do but i finally got it started all i did was connect the fuel pressure gauge and give it some throttle and it runs at 10psi

 

Should be ~35psi. Sounds like a dead fuel pressure regulator.

 

Well i was thinking it was a bad fuel pump but it looks new so i will check the FPR...and see if i can get another one

 

Well you can verify that it is the fuel pressure regulator by clamping off the return line and watching the fuel pressure. If it jumps up, you know it's the fpr that isn't holding pressure. If it still stays low, then the pump isn't working properly, isn't getting enough voltage, or you have no fuel in the tank.

 

well im removing the head to replace the head gasket right now and the the injector harness looked like it was not making contact with the injectors so i need to check that and than the FPR as soon as i put everything back

 

Sounds like you need a new connector kit

 

well do yall know if the $20 connector kit from ebay is fine and also any thing i should do or buy while the head is off so far im checking for warping and i bought a complete gasket kit and a water pump.(also is this to off subject)?

 

Dunno... link?

FricFrac sells Z specific kits (thus the reason he said it).