1995 silverado fuel injector problem?

Fuel pressure regulator. or stuck open injector/s. The only way gas can reach the oil is threw the piston rings. Gas will seep threw them. regulators can dump a lot of fuel threw the plenum. An open injector will bleed off pressure(when turned off)) and dump gas right into the piston.

could be few different problems first u need to check for fuel pressure and spark
hook a fuel pressure gauge up and see if ur getting any fuel pressure if you have no fuel pressure u either have bad pump or out of gas (don't laugh i had cars come in shop for a no start that where just out gas)
if u have fuel pressure
then check for spark
take one spark plug wire of a spark plug and hold wire about 1/4 inch away from either the spark plug or engine block if u see a spark or hear one
if you have no spark your looking at a few different possibles Bad coil, ignition module, crank sensor, etc
if you have fuel pressure and spark but still no start u need to check for injector pluse (basically computer telling fuel injectors to open)
but now i think I'm getting over your head let me know if this helps and i try to walk u threw other things if this dont help

Use a gage and check proper fuel pressure, 41--47 psi, key on engine off. Cycling the key on and off a few times before you crank it, should prime the system.
Check for fuel injector pulse, use a noid lite, engine cranking. The voltage for fuel injector probably goes hot with the key on. The computer grounds the fuel injector circuit. The diagram is for 2.2L engine. The pink wire for fuel injectors is voltage, the bottom wire is ground. We've talked about the fuel system, could be other issues?

have you checked the filter, i know you state the fuel lines are clear though. likely fuel injectors have lost flow. the TBI injectors can be cleaned, but i usually just replace them. but check them using a timing light hooked to the coil wire for timing of each injector spray. the pattern under the light should be even and conical shape, no major spatter. if one shows low volume, the other one should be replaced at same time, it will save you having to change it when you put brand new next to old one a have same problem again. only replace with brand new, i've had 7 bad remanufactured injectors on one truck at one point in time, only replace with new!

Make sure the central injector is not leaking( fuel pressure should hold ) the cfi is alot of plastic and it's inside of the intake maniflod(they crack and leak!) part about 350. How do you know the computer doesnt work

You could have a bad engine coolant sensor giving the ECM a bad temp reading. It is located in the front part of the manifold.

my injectors have no power ging to them. i just replaced fuel pump and relay. i have fuel going to my 350 tbi but nothing coming out the injectors. it wont start and i have no power at the injector so i dont know if its the ecm or what

replace the injector - before you do that test voltage going to the injector- is should pulse on and off to open and close it

Do you have spark? If you do sounds like a fuel delivery issue. Check fuse for fuel pump, you are in a later year and should have an electric fuel pump. If you are getting fuel to the injectors at correct pressure you may need new injectors.

Try starting with starter fluid if it catches that will secure that it is a fuel delivery issue. If it doesnt you probably dont have spark and most likely be an ignition module.

injectors bad or cloged