I have a 1994 xle with 131000 miles, I have replaced the igniter per toyota due to the engine loosing power, stumbling and stalling. This seemed to have cured the problem for about 5 weeks until I drove in a driving rain today and some VERY shallow puddles. At that point the engine lost power as if it were not getting enough gas or air. I blew off the front end of engine believing that water may have gotten on a sensor? After about 5 minutes and giving the engine gas it stumbles and feels like it is not getting air/gas. Any help would be graciously appriciated.

 

Sounds more like a loose vacuum hose. Also, check the oil level and how dirty it is. But still, change the air and fuel filters.
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You may have some wire or component draining your battery due to a short in the wiring or internal damage to the component too.

 

If car runs poorly after going through water check ign wires, wiring, coil, etc.

 

Yeah i say an exposed wire somewhere. Get it on a lift (or crawl under it like i have to do[:'(]) and see if you can see exposed wires. It may be that the force of the water is phisically pushing a bare wire to touch a ground rather than the water causing a short. If it is effected by "shollow puddles" like you say, it may be quite obvious.