'95 Grand Cherokee won't start

I just replaced the radiator hoses and jeep won't start. security system is blinking, headlights, dash, no horn. Jeep cranked over but battery was being sucked down. Replaced battery with "good used," cranks much better but no start. Seems like there is no fuel getting in. Seems like the alarm system is being tempremental, Any Ideas?

Also I have a Viper remote starter/door lock setup installed with factory alarm still hooked up.

help is appreciated.

Does the dash gauges/lights come on like normal when you first go to start it? If not, I believe the crank positioning sensor is at fault. You need to check the fuel pressure at the fuel rail too.

try replacing the alarm, I had a similar problem last year and that fixed it up.

Did you get it fixed? I would guess the alarm system was at fault also.