I have the same car, 1992 camaro rs 3.1L V6 and when I spray starting fluid in the throttle body air intake it wants to start right up with no problem. but when i don't have any spray in it just cranks over and doesn't start. i have pulled the distributor and reset it on the number one spark plug because previous people messed it up but it transmits a good spark so that's all good, i also have tested the fuel pressure before the fuel filter after the fuel filter and at the shrader valve and they all have good fuel pressure around 44 psi. i also just put all new spark plugs in because the old one were fouled out. i tested the fuel injector wires to see if the wires were hot and they are with the key off and on, i was told by a well trusted mechanic i know that when you crank your engine over the ground wire to the fuel injectors should blink, i tested it and as soon as you crank the engine you loose power. i thought maybe the ECM could have gone bad but i wouldn't think it would only make the fuel injectors to not work. so right now I'm trying to find the fuel injector relay and replace it since its only $15. if someone could help me resolve this it would be great.

 

How are you testing for a signal to the injector? You have to real carful. A test light will draw too much voltage and it can fry you ECM. To test for an injector pulse you need either a scope or a injector noid. The noid light has the same resistance as the injector and will not hurt the ECM


ECMs use internal quad driver to run anything more then 5 volts. If the quad driver fries it would have no other impact other then the item it was driving, so yes a ECM can fail and the only symptom could be not injector signal. Also your 92 has a secured key? Is the security light on? If the Vats system thinks the car is be tampered with it will turn off the injectors.