Howcome my 1997 nissan sentra gxe wont run?

i have a 1997 nissan sentra gxe, the problem is that it overheats really fast and it wont run pass 20 mph. on some days when i would press on the gas the car would feel like it would want to turn off and then one day it was overheating and it wouldnt want to go any faster. my friend told me it would be the spark plugs, so we changed them and then it didnt want to turn on. when we took it to the mechanic they said the distributor was broken and the fixed it. it ran for like two days and then the samething happened again but this time the thing under the engine was really hot and bright red. when we took it back they said it could of been the fuel pump, the distributor or the catalytic converter. does anybody know whats wrong with it?

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Answer:
Over heating (glowing red) cat converter may be due to clogged fuel pressure regulator. Actually the converter is probably clogged and the engine cannot rev up. The (bad distributor) and poor running before caused the cat to fail. For the correct repair spend the money and visit The Nissan Dealer. See if I told you the distributor would fix you up I would have to stand by that and if the converter plugged up Nissan would have to pay for that because my work is guaranteed. And while at Nissan look at some new cars your Sentra might want to stay and you can drive away in a new Rogue.

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