Okay, so lets see where I can start. I have a 1990 Toyota 4Runner, V6 3.0 litre with a manual transmission. It has about 250,000 kms on it.
I recently dug myself into this car and I am trying to get it running.
First time I tried to start it, it died within 3 seconds every single time. After a while of playing with it and feeding gas directly into the engine it started to run a bit better and barely moved under its own strength. It was even idling by itself. The next day it was the same as when I first tried it, it died after a few seconds if it even turned over. I started to get suspicious that it wasnt getting enough fuel so (after much work fiddling with hoses and bolts) I replaced the fuel pump, and removed the fuel filter to make sure it was not causing problems either. No luck there. I found out that it wasnt a fuel pump problem at all and that it was an electrical problem. There was no sparks comming from the distributor when i routed my fuel pump with power from a fuse, possibly because it bypassed the computer and so it didnt know it had fuel so it didnt know to spark? anyway yeah im out of ideas. I do believe it is electrical, injector, or fuel pressure regulator related. It has fuel pressure up to the fuel pressure regulator, a lot of it, but still no go... Any help?

 

If you don't know about this online manual it's a good start for troubleshooting. If I were you, I'd start troubleshooting without bypassing anything to better determine the problem. Post up your findings!

http://personal.utulsa.edu/~nathan-b...fsm/index.html

 

Its running now, but its only running on two cylinders. Checking it out under the manifold now. I think it's just not enough gas getting to it, new fuel pump and filter isn't a problem. Not sure why then. The cylinders that are working are the ones opposite of each other in the distributor, 2 and 5 I believe.