I have a 93 GMC with 4.3 TBI engine. 2 nights ago, it died on my way home, acted like it was out of gas, but I still had a quarter tank. I put 5 gallon in it just to verify that it did have fuel, but it still wouldn't start. If I put a little fuel down the throttle body, it will fire for a few seconds, so I know it has spark.
I checked the fuses, they are OK.
I'm guessing that it's either the fuel pump died, or the ECM. I had the ECM go out 2 summers ago, so it's not very old.
There doesn't appear to be any code set. How do I check to see if it's the ECM or the pump?
How difficult is either of these items to replace?
Is there something else that I'm overlooking?