I've had the problem of no fuel pressure when trying to start the motor, I've just had everything check, they got it going but now it won't start at all. Can this be the fuel pressure regulator?

 

Is ur pump working? If so is ur fuel pressure dropping? After a few minute? What exactly you mean by had everything checked? Timing, fuel pressure, spark, compression?

 

Yep, been through 2 fuels pumps, the first one had a fault in it, I've got no fuel pressure at all on a cold start. The new pump has been checked and is fine, only thing I can think of is the fuel pressure regaultor

 

If it drops pressure after switching off your ig it could be a possibility, theres a few step procedure to check a regulator malfunctioning. Also check your pressure as it cranks, maybe a old fuel filter its dropping ur psi as you crank? Just trying to give you ideas

 

I found a mechanic who is a wiz with blazers, sending it off to him to sort, this all over my head, don't know what hell it all does, just want it to work

 

I hear you, I been there. good luck my friend. Keep us posted on what he find, I would like to see the answer