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Okay well I own a 1982 280zx with about 154,000 miles on it. I bought this car about 2 years ago and it has been running fine until lately. It started stalling a while ago and it has gotten to the point where I cannot go any where. Okay well it only stalls whenever the engine is hot and warmed up and I stop at a light or something. I watch the rpm fall a little then slowly the engine dies. It is hard to start the engine up again and I have to wait for a while. I have no problems whenever I am just driving but when I stop it dies. A while ago my radiator cap came off and my engine over heated badly but luckely I dont think that anything was damaged.

I was told that it might be the fuel pump. I figured that the fuel pump gave out after getting too hot so I replaced it. I replaced it with a generic one from Auto Zone and it solved the stalling problem, but the engine runs like crap. It smokes, guzzles gas, and you have to give it extra gas when you stop or it will die. I noticed that with this fuel pump the temperature is less and so I figured that it was maybe not the fuel pump.

Next I bought a high pressure fuel pump made for Z's. After putting this pump in the car ran great. It was back to its old ass kicking state until the engine got hot about a mile down the road. I was back to my old problem of stalling.

I think that my problem might be caused by vapor lock because the engine might be getting too hot and the fuel injector railings are attacked to the block.So the engine heat may be overheating the fuel. I would appreciate some advice and some tips to fix my problem.
 

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None of the above... sounds like the ignition transistor unit which is located on the side of the distributor is going bad. Common problem with the ZX. Good move getting rid of the AutoZone fuel pump! Order a factory service manual for your car. You can get one through www.ideal-z.com. You need it.
 

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Hey man, peep this I got an 82(with209,000 miles) that had the same problem this summer. Here in texas it gets really hot in the summer and every time I would stop at a light the tack would just bottom, out and she would die. One day at a light I played with the skirt on my EGR valve got back in and she fired right up, I replaced it because it was corroded with carbon build up, I havnt really had a problem with it stalling anymore after that. It might be worth taking it off and haveing a look.
 
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