I recently traded an old pick up for a 98 Jeep Wrangler SE. I really wanted a project to work on with my dad and I got just that. The guy I got it from said it was running when he purchased it but was to big of a project for him. After finally getting it home the Jeep turns over but won't fire. I put a new distributor cap, plugs, ignition coil, battery and crank position sensor. But still nothing. I can hear the fuel pump engage but I'm still not getting it to fire. Please help