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280z dies, won't start, then randomly will start


Nick89gta

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So I have a 77 datsun 280z, its all stock, has new injectors and injector connections, fuel filter, and a few other things that don't matter much. Anyway, I was driving home and the brake light came on, then it died, wouldn't start at all just cranked and cranked. Two days later I hit the key, it doesnt even make one full rotation and fires, and runs like a brand new car. It doesnt make any sense to me, I really need help, any suggestions? Thanks

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It died while driving, manual, I was shifting down into 3rd to slow down so over the transmission I'm but sure if it died before or after.

Its the second time it happened, the first time was the day I bought it, had to have it towed home, after two weeks my dad and I got it running with the new filter, but it missed and I could changethe idle by wiggling the wires, so I replaced the connections and out ran great.. I drove it maybe 30 miles and it died again wouldn't start. Now it will start all day long.

The only other problem is once the car warms up the idle gets real low and it doesn't want to really go from a stop, but once it gets to about 10mph it'sfine. I think that might be the throttle position valve.

Thanks again, I really need this car back I'm lucky to get 13 mpgs in my trans am lol

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Thanks, is that in the passenger kick panel area? It died on me again today and I hit the relays in that area and it started. Today it acted like it starved for fuel, so I was thinking maybe a fuel pump relay

 

naw,

the voltage regulator is in the engine compartment in a metal cover behind the fusible links on the passenger side. i woul also check the factory splices where the wires split for the fusible links as well. mine completeley rusted away and i had no power. it was about a year after my random start problem.

marcus

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  • 3 weeks later...
Guest Dan Gleason

The black ecm attached to your distributor sounds like it is going bad. The generally go bad when the engine gets hot.Yours needs to be tested or replaced. Check the Factory Shop Manuel to see what test can be done to see if the box is bad.

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