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CODE 13 keeps showing up

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Old Oct 8, 2013 | 06:11 PM
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CODE 13 keeps showing up

13 says Oxygen sensor signal stays Lean during warm engine cruise. What could this be???? I ran the car on the hwy today with no signs of hesitation- OD came in at around 45 mph. Soooo why do I get Code 13 ?thanks
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Old Oct 9, 2013 | 07:21 AM
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
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Re: CODE 13 keeps showing up

This is cause bye a inactive o2, poisoned, lazy, defective or sooty.
13 Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds.
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