The Chrysler K-Car Club

So last weekend I changed the tps sensor and instrument bulbs. It has a tps code and idle air code. Last week before and after tps replacement it started and ran fine. Today I come back to replace idle air valve and it started up easy first but very shortly the engine dies. I restarted the engine sand moved under the carport and we could never get it to crank up again. My friend says he saw gas coming from injector sometimes when I cranked and sometimes not. We got it started a few times but engine always dies without warning. So far before all this I have replaced fuel tank, hoses, filter, pump, sending unit, wires, cap, rotor, plugs, and brain box. So how could it go from almost drive able anywhere to not even starting within a couple weeks.