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High C/O 2500 rpm

   
Old Jul 30, 2009 | 10:38 AM
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sharpauto
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High C/O 2500 rpm
Anyone have any ideas, I have high c/o, 6% at 2500 rpm. I replaced the plugs, air flow meter ( reman ), engine oil. Fuel pressure is within specs. 1979 Nissan 280 ZX CA car.
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Old Jul 30, 2009 | 10:44 AM
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NismoPick
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From: Wild Wild West, UTAH!
Welcome to ZDriver!

What is the timing set to? Is the catalytic converter still on the car?
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Old Jul 30, 2009 | 10:43 PM
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bojo68
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Check the throttle switch on the air valve. If it's stuck closed, it will cause rich all the time.
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Old Jul 30, 2009 | 11:16 PM
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Originally Posted by sharpauto
Anyone have any ideas, I have high c/o, 6% at 2500 rpm. I replaced the plugs, air flow meter ( reman ), engine oil. Fuel pressure is within specs. 1979 Datsun 280 ZX CA car.
fixed
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Old Jul 30, 2009 | 11:57 PM
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njgheewala
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From: Los Angeles, CA
Originally Posted by skib
fixed
hahaha, I second that
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