First off i'd like to say thank you to all the great tips and advice on this forum. I've followed ALOT of advice on this site before becoming a member. so THANK YOU!
Now my issue... I've got a 92' YJ 4.0 I6. It died on me on the freeway (little to no throttle response followed by very rough idle, then ultimately nothing). after getting it towed home, I jumped on this site. I started shotgunning parts at it... My list so far includes: Fuel Pump, Fuel filter, new fuel lines (they were old and brittle), Fuel pressure regulator, Throttle positioning sensor, Crankshaft sensor, cap and rotor, plugs and plug wires. I'm at a loss now. i've replaced almost everything that all the trouble shooting posts on this forum have reccomended and still have the problem.
It will fire up, idle for about 5-10 seconds and then die or it dies sooner if the throttle is pressed.
The battery is strong (Optima Red Top less then 2 yrs old), i've triple checked all my vacuum lines, my ground is good and clean connections. I have a good buzzer and my Check Engine light and such come on when i turn on the key. I hear the fuel pump prime and when i replaced the fuel pressure regulator i turned it on and had good fuel come out the hose while it was disconnected. I also have fuel coming out the test port on the rail until it depressurizes.
Sorry for the novel here but i wanted to provide as much detail as possible for any readers. Any and all advice is welcome!
Thanks in advance!