hello
i have bought a second hand mitsubishi eclipse 1995 gs manual and i have been experiencing problems like everyone else such as the engines always turning off when i stop at a light or intersection but it has no problem turning back on, it turns on quickly and it happened only a few time that it would stop accellerating even with the engine still on ,im reading on faulty fuel pumps or im not getting proper spark distribution but am unsure of the problem, as you know its a non-turbo engine but im in the process of replacing the entire engine with an eclipse turbo 2.0 dohc engine ,will it solve my problem or is it something else ,one more thing i dont fill my gas tank to full anymore because it didnt start so i left it at the station and started when i got back 2 hours later since then i fill it half way. please give me a solution as soon as possible thank you very much 

This is a symptom of a broken speed switch, which is a part of the speedometer in the instrument cluster assembly. With the switch inactive, the ECU (the car's computer) does not know the car is moving and doesn't keep the idle high enough to operate the power brakes.

First off, the idle speed for these cars is 750. When the car is moving, but the clutch is out, the ECU will keep the idle speed above that (possibly up to 1.5k, if you have ABS). This is so you have enough vacuum to run your brakes and steering. So the problem is that your ECU does not notice that the car is in motion. When you put the clutch in, it tries to take the the idle to 750. You turn the steering wheel and use the brakes, requiring vacuum and thus
killing the engine.

So how does the ECU get speed info? There is a "reed switch" that opens and closes whenever a magnet passes by it. Your speedometer is driven by a magnet shaped like a cross. As it spins, it drags the speedometer needle with it, to the right, against the pressure of the return spring. The faster it spins, the more the needle pulls to the right. It is called something like a "deArsenal" movement, and I might have mucked up the details, but that is how it works. So Mitsu put this reed switch next to the magnets in your spedometer, and wala! the ECU now knows your speed.

Two possible causes of your problem. Your speedometer is unhooked or your reed switch is broken. Though broken wires to reed switch not likely.

Now this is just a problem I've seen with other Eclipses. Your problem could be a general tune-up item such as spark plugs, EGR valve, air filter, fuel filter, or even a bad PCV valve. Have a mechanic check over the items I mentioned, and hopefully they will find and fix the problem.
Good luck!