Well that sucks would have been nice if that's what it was. Yea it's pretty tight to get to that sensor but not that bad. I think I did my buddies in about 30 minutes or so. Hopefully that's what it is. If I remember correctly I would tap the key a few times and then crank the jeep and I could sometimes get it to start. Give that a try maybe. If it starts that could help in determining the problem. Another thing to try is have you wife or someone turn the key on while you put your ear up to the gas tank to see if you can hear the fuel pump run.
1998 tj: T&T long arm, 4 inch currie coils, Savvy Gas Skid, 4.56 gears HP44 with RCV shafts T&T truss front and currie HP9 rear, arb front and rear, teralow and tera2wd kit, 37 MTR's with kevlar, full cage, warn winch, T&T tire carrier, CO2 tank, etc.
Daily Driver/Tow Rig: 2008 Dodge 2500 diesel