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Mechanic/Shop Recommendations for Denver

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Old 08-22-2011, 09:56 AM
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Mechanic/Shop Recommendations for Denver

We just bought a 77' 280Z 2+2, love it, runs great... but failed emissions. This is our first old car to tinker with... any suggestions?
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Old 08-22-2011, 10:01 AM
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Welcome to ZDriver!

What made it fail emissions? HC? CO? and by how much?
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Old 08-22-2011, 12:22 PM
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The HC passed
The CO @ 2500rpm was 6.91, idle @ 1.80 limit was 1.5
Only drove it for about 20 min prior. Average speed 60mph.
It had been been sitting for the last six years. Thx
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Old 08-22-2011, 12:30 PM
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High CO means the engine is running too rich, or not completely burning the fuel.

Have you done a tune up? Drain the old gas, change the spark plugs, cap & rotor, air filter, change the oil, PCV valve?

Hopefully you did those things and just didn't mention it (it's a must since the car has been sitting so long).

Also, what is the timing at?
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