this is from a 93 astro van.not sure on miles.


We replaced the fuel pump,and filter(ac delco)
ignition module(oem)
tried unplugging the oil sender (this should peg it out right?)
and rebuilt the tbi assembly and even tried new injectors.


We hooked a noid light to the injector wiring and they had power while trying to turn it over. If i loosen the fuel line fuel squirts out,so the tbi is getting fuel. What else could it be?

 

How much pressure is getting to the injectors? The TBI injectors need 8-10 psi to properly feed the motor.

Was the noid light pulsing?

 

not sure on the pressure. Il tell him to check it tomorrow. It was pulsing like it should compared to my 91 s10. So why would it send power to the injectors,but not open them?

 

The only reason why the injectors wouldn't open is either the fuel is not getting to the injectors or the electrical connections to the injectors are not making proper contact.

 

chris mine was doing the same thing. everything checked out like it should and everything. turns out that i had broken the clip on the coil. i just grabbed one from the junk yard and replaced it. so far so good. while someone tries to start it, you can move the clips on the coil and see if fuel sprays in.