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Stock & original California version 1977 280Z with 163,000 miles. Was running great yesterday and suddenly went belly up today. Car will start but will not idle by itself. Idle is very rough whether the engine is cold or warm and huge clouds of black (not blue-gray) smoke pours out the tail pipe. Engine will not rev over about 3,000 RPM. NO power. Came on so suddenly I have to assume it is probably electrical in nature. Wiggled some wires up by the water temperature sensor/thermotine switch and it got better for a few minutes and then went bad again. Had a similar problem 6 months ago - wiggled the same wires and it went away until today. Manual indicates it could be the altitude switch (don't know where that is) the water temperature sensor, the throttle valve switch, the thermotine switch, the cold start valve or any combination of the above. Anyone else have a similar problem and find the solution? It's a bugger getting to work when the car doesn't run.
Thanks in advance for replies.
Phantom.
Thanks in advance for replies.
Phantom.