My 1998 Blazer will not start. Has spark and fuel. New fuel pump last spring.
Has 62psi when key on and 54 when key is off.
Ran fine when I put it in storage last April.
I put on new cap / rotor and pick up in base of distributer.
I can pour fuel into throttle body and it will run.
In tested the pins on the plug for the fuel injector. I have a consistant Positive to injectors but no negitive signal. I assume that they are pulsing the negitve side to control the injectors.
One question I have is What controls the negitive signal to the injectors?
Does it sound like the computer is bad or what?
I parked the Balzer in april. I tried to start in June but battery was dead. So i left it sit till last week and put new battery in it.
Any ideas?

 

start after 5 -6 attempts. Changed spark plug wire, distiribuidor rotor, distributor cap, pressure regulator, fuel filter. any ideas?? The pressure of the fuel pump is between 55-60 psi.