Stumped... 1992 300 wagon 2wd

5/8 fuel load, hit a LARGE frost heave, and car acted like it ran out of gas... It didnt spit or sputter, just bwaaaa to a stop.. Can hear the fuel pump pump and stop, car will attempt to start (like its running on fumes only)

Ether and it starts and runs fine.. but no fuel is getting in the motor..

next going to check at rails for fuel.. Any other ideas or suggestions are much appreciated, it's my only trans at the moment and well it goes over frost heaves USUALLY much better than I do walking!

Thanks in advance Karl