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240Z, 260Z, 280Z, 280ZX(T) 1970-1983 Zs - Engine and Chassis Discussion

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Old Jun 14th, 2009, 09:27 PM   #1 (permalink)
Mightyjustice
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Join Date: Jun 2009
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280z running rich

I just bought a 78 280z that I have been having troubles with. Periodically while I am driving it it doesn't run while I am giving it gas. Idles fine, but as soon as I put it under load it dies. Release the gas and it runs fine again.

Just recently I went through the factory service manual and started checking all the sensors. I cleaned off a bunch of grounds, unplugged and plugged in the control box, and fixed what I thought was a bad ground on the air regulator.

Now it runs REALLY rich. White smoke out the exhaust and smell of gas. But I don't think I did anything. I'm really confused.
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