back again with another problem with this tpi system. its a 305 tpi in an 87 irocz, had a problem with this before, and found it to be an issue with the distributor.

Right now, it cranks up, and will run for litterally two seconds, then dies. Fuel is there, messures somewhere between 45-47 psi. good fuel as well.
I have already replaced spark plugs, wires, distributor cap and rotor, and ignition coil.

Spark is there while cranking, which is why im leaning towards either a bad sensor or bad electrical connection. I'm not too sure about the tpi sensors and where to look, i know about the IAC and TPS but not sure what to look for voltage wise on it.

Also the 2-wire harness from the coil to the back of the distributor doesnt look too healthy, can these be bought new from autozone or somewhere else?

 

Check for injector pulse by using a noid light.

 

Injectors are working.
Just something i noticed now while double checking everything, if i open up the throttle, it shuts off instantly.

 

Hey bud um having same problem what was wrong with urs

 

any luck?