'79 280zx problems... again

A forum for owners of S30 and S130 Datsun Z's... 240Z, 260Z, 280Z and 280ZX!
DoctorRobert
Posts: 85
Joined: Tue Dec 02, 2008 7:55 pm
Car: 1986 Nissan 300zx, 1985 Nissan 300zx, 1987 Nissan 300zx
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No, the car does not restart immediately. I notice that on the '81 AFM that I bought that someone had drilled out the air/fuel mixture adjustment plug. So I have no idea if that one is even good or not. And the car, when it did run, certainly didn't run well with that AFM. I'm leaning towards maybe a problem with the fuel pump. Except that while the car wasn't starting one time I took the fuel line loose and it was pumping fuel out, so I know for sure it was pumping fuel at that time it wouldn't start... I don't know.


bbrownx
Posts: 10
Joined: Sun Sep 20, 2009 6:37 pm
Car: 79 280zx

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My z had some similar issues when I first got it. The biggest change in starting/running better was when I swapped the ECU. I later replaced the CHTS, but I believe the ECU made the biggest difference - just an idea to try out.

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blackice280zx
Posts: 74
Joined: Sat May 23, 2009 11:36 am
Car: 280zx 1981 x2 1999 volvo v70

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I have never had to replace the ECU but not unheard of. I got that other zx that was doing the same thing the OP's car is doing I replaced the fuel pump relay and It has been fine. Knock on wood. I will keep you posted b/c it is not a regular thing like he stated.


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