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Showing results for tags '78'.
Found 3 results
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Hey all, I did the transistor ignition unit upgrade as described here: Given this though, I have had some problems after doing it. Given that I have a '78 I don't seem to have a resistor below the ignition coil but I think I wired the HEI module in correctly. I think it is correct since it ran for over 6 months, and the last 7 weeks of that was the car being driven daily. On the 7th week though, problems began. The car became slowly harder to start taking longer and longer to crank until it eventually stopped firing all together. I have checked and the car has fuel and air, just no spark. Seeing this, I replaced the HEI. After replacing the HEI the car stumbled as if it would fire and then resumed cranking with no spark. So, have I installed the HEI correctly for a '78 280z? If so, what else could be killing HEI modules when I replace them? I have attached pictures of my module installed:
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So the electrical saga continues with my z... I have a 1978 280z and it recently developed a tendency to turn itself off when I'm driving. It started with it just turning off when shifting into reverse but has evolved into turning off with the right blinker once (I could hear the a relay in the passenger foot well clicking on and off with the blinker) and also just randomly while driving. Today it died in my neighborhood before i could leave and wouldn't turn back on until I jiggled the main wiring harness around. Because of all of this I suspect two wires shorted together since the turn signals and reverse are on the same circuit and removing the fuse for them fixes the problem but if someone could help me track down where in the harness i should be looking and what wire to the main ignition relay or other relay that would kill the car might cause this.
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My wife learned to drive in this California car back in '78! It is a late 1978 280Z with an oroginal/stock 1979 engine installed by the factory during Datsun's transition to the newer 1979 280ZX body style. My Father in law gifted irt to us back in '85 when we got married and we have driven it on and off in Florida ever since. This car has never seen snow and salt covered roads, but it HAS had it's share of rust! The original, serial# matching power plant still runs great, but the electrical system has seen better days. I replaced the hood, the interior, the alarm & radio as well as several rusted panels and did a complete repaint completed in January of 2013, but quite frankly, I am over it! If you want to complete a wonderful project or just need a great engine this is the car for you.
