Hey guys my name is Rob and I know the experience mechanics can help me here cause I'm so stumped. I have a 1994 chevy s10 pickup 2.2 liter. I've rebuilt everything on it. It drove great for the past year in a half. Until last week. It will crank and then nothing, like no fuel to throttle, etc.

Now I had this problem before and I had to switch out fuel sending unit and fuel pump. So I thought it was same problem since no sound from pump when you turn it on. Here's all I've done and still no power to pump.
1. Replaced fuel pump relay fuse
2. Fuel pump
3. Checked all grounds from back of the truck to the unit

I still have nothing, it will fire up 1st try then cut off. So please give me some advice on what to do next I'm so stumped. I appreciate you all

 

throttle body fuel injection or injectors in the manifold?

 

Throttle body injectors

 

check for dtc and post them

if no codes do this:
confirm you have no fuel out of the injectors...remove the air filter and have someone crank it over. you should see a nice conical spray pattern. Don't touch the gas pedal while cranking...a wot will enter a clear flood mode that will shut off the injectors.
-if you have not fuel from the injectors; install a fuel pressure gauge and confirm fuel pressure from the pump. not sure what spec is...maybe 10 to 20 psi?
-if you have pressure, you need to check for injector noid signal...ie injector opening. they may noid lights to check this that plug into the injector connector. Some models can use a test light to grd...point on note...the noid light must be of the correct resistance or you risk damaging the pcm injector driver circuit.
if you have not noid...check for crankshaft position sensor signal.

 

Try adding some gas to throttle body - if it starts it shows you have spark and now look harder at fuel issues. When my 93 5.7 did this (2 times now) it needed an ICM

 

+1 can of brake cleaner works fine too. The can spray pattern atomizes just like a fuel injector