No start, no spark, no fuel pump activation?

Hello, for 1995, Mazda has the Protege and the MX-5 as 1.8liter engine for that year. Both actually show the fuel pump relay as having a Light Green wire as the control wire for the relay which the PCM grounds to activate the relay. Both show a check engine light as well, so if it's not lighting up at key On, the PCM is most likely not being powered up, so I would start checking for any blown fuses, or chewed through wires if it's been sitting for a while, rodents like to eat the insulation on the wires, plus you can usually smell them if they have gotten into the vehicle. If you post the VIN service info on the correct vehicle it should show up.

Okay, that VIN is not showing up, are you located in the US? But the only models with a 1.8 are the two I listed previously. I'd be really surprised it doesn't have a check engine light, even pre-1996 (OBD1) had check engine or malfunction indicated lamps. There should be a tag either under the hood or in the driver side door frame that has a build date on it, just a month and year (ie, 06-94 for example).
But for the MX-5 on the MAIN ECM relay I do see 2 White/Green wires going to one pin which feed the load side of the relay, that relay in turn, feeds the fuel pump relay on the White/Red wire, the White/Red wire also powers the fuel injectors and bunch of other things.

The MAIN relay also has a double pin Black/White wire which is the ground for that relay, its activated by the ignition switch feeding it power.
If you can post a picture of the VIN, I can search for that a little bit more.
For the Protege that White/Red wire comes from the relay labelled "MAIN Relay (FUEL INJ)" but it powers many other components as well as the ECM with the key On. It also powers the Distributor so that's probably why you aren't getting any spark, but the two vehicles have a slightly different setup when it comes the engine harness wiring.

Just trying to look over this as close as possible, the Protege has a Distributor, but the MX-5 looks to have two coil packs, so we'll go with the Protege wiring diagrams for now.
The White/Red wire does have a splice after leaving the Main relay, where it breaks of continuing as a White/Red, but also a White/Blue wire, which can also cause some confusion when trying to trace down these wires, the White/Blue wire feeds the injectors.
Strangely enough the White/Red wire goes to another splice which turns Lt Green/Black and that feeds the MAF and runs to the ECM.

So, some really stupid wire colors changes that shouldn't be like that. I'll go over any OEM diagrams as well if there are any,
This Main relay should have a constant ground on the black wire, so that's something you can check with a test light hooked to battery positive, with the relay out, the Main relay should have one pin with constant power, then the black/white wire with power from the Ign switch, You can check those with a test light hooked to Battery Negative. And then I would move on to the Fuel pump relay if that first one is okay.
I'll post the diagrams i'm looking at here.

There is an error on the first diagram here, I've shown it better in diagram 2, then added the OEM ones (3-6) which shows the White/Red wire going to power the MAF.
So if these are correct, power comes from the Main relay via the White/Red wire, powers both side of the fuel pump relay (control and load) and then the ECM grounds the fuel pump relay on that lt green wire, which looks like you should be able to check if it's being grounded at the DLC. I'll look for DLC pinout for you as well.

Here is the data link connector location and pinout, let me know what other diagrams you may want and what you find during testing. It's definitely an OBD1 connector.

Is the immobilizer light on when trying to crank it now as a no spark again? I'm going to look into the MAF a bit more to see if there's a temperature sensor or some kind of reference voltage going to it. Any other sensors unplugged earlier, or ground wires unbolted?

That's where I was going as well, something might be going on with the anti-theft here.

I was just actually looking for any security systems and not finding any wiring diagrams for it yet which is strange. Does the chime still work if the key is left in the ignition, such as reminded indicator?

I'm looking at a "Central Processing Unit" which has a switch for when the key is left in the ignition, it should chime and remind you it's been left in. This module has all the door switches, seat belt switch, parking brake switch. It does go to the cluster, mostly warning lamps, I think.
What kind of immobilizer button do you have, is it like a key fob type?
Sorry just seeing your other comments, the data link connector is not like the 16 pin OBD2 ones we have now.
What happens if you unplug the MAF? Might be a stupid test, but I've seen stranger.