Fuel issue could use some thoughts

I have a 90 Honda Civic that belonged to my Mom since NEW. It has 113,000 miles on it. Last summer I developed a fuel issue, like NO FUEL:screwy: coming out the filter. So I thought new filter which I did. & it started & ran. Well a few days & it started acting up again. So I took it to a shop & they said the fuel pump & pick-up screen were in need of being replaced. So I had them do that job. Thing were great for a month or so, when one morning NO START. :banghead: Well, I noticed the check engine light was on & didn't go off. So I researched around & came up with maybe the Main Relay was bad. Remember this car is 21 years old & 113,000 miles. So I took it to a shop out of town that had done work for me over the years & where very good , honest, & reputable. They checked it out & said Yes the Main Relay is bad, & replaced it. The guy that did the work was a Honda mechanic that drives a Honda. So I was off again. Well everything was great for about 2-3 months & we were coming back from Las Vegas. I was pulling a hill 6500' Summit & the Honda stumbled a few times but kept running. We got into the next town 30 miles away & stopped for gas. It wouldn't start. This time I pulled the hose off the filter from the tank & turned on the key cranked it & NO GAS. :mad: So I called a buddy 100 miles away to come get us by now it is snowing hard. Well a couple of hours later he arrives & I had tried to start it every so often with no luck. Well he pulls up & I try it & it starts. Well it runs home the 100 miles but stumbled every so often. Got it home NO START. The next morning it starts right up I drive it to my moms house a couple of miles away & it won't start again. So I leave it sit. Well a week or so ago I was at my moms & I went out & it started right up. So we took it for a drive & it went 30 miles I pulled up to visit a friend & it was idling then quit. Towed it back to moms & it sits. NO Check Engine Lite no codes just NO FUEL.
Does anyone have any thoughts about this. I live 600 miles from my mom part time. My wife works in a different State & we have our RV where she works & we own a house where my mom lives. I travel back & forth & would love to get this Honda so I can run the road with it. Our blazer gets 18-20 mpg this Honda gets 30-38 mpg.
Sorry for the long post but I need thoughts & ideas. I keep thinking that the shop that did the pump, either jerry riged something, like wires, or the pump could be defective. :jerking:
THANKS in ADVANCE FOR ANY THOUGHTS. :confused:

Thanks for your response. That is the way I'm leaning. The shop that did the pump did some other work for my mom & after they did the pump I found some stuff they did that was mickey moused. I ended up with an over heating problem after they claimed to fix a coolant leak. What they did was cut off a hose end & never bled the coolant system so air was trapped. I was on the road when this showed up in fact in downtown Las Vegas in the summer & it started overheating. I got it to a friends & we opened the system installed a new thermo., found the piece they cut off We bled the system & there has never been another issue. So I know they do crap half a$$ed.

Might also look at ignition module. Both of my 90 hondas had a similar issue. Would start sometimes and other times it wouldn't. Ended up finding out that if I wiggled the ignition a little after trying to start that it would start sometimes. Replaced the ignition module behind the key and they've been running fine since.

Might also look at ignition module. Both of my 90 hondas had a similar issue. Would start sometimes and other times it wouldn't. Ended up finding out that if I wiggled the ignition a little after trying to start that it would start sometimes. Replaced the ignition module behind the key and they've been running fine since.

Thanks for that info. It is in the steering column??? Can you provide me any further info??