Code description help

CHEVROLET SUBURBAN
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GBGTEXAS
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2003 Suburban, 5.3L

intermiitent codes P0178 and P0179 pop the check engine light on. Runs fine and my Genesis machine says "Description unavailable". Any ideas what these are?
Aug 11, 2007 at 9:13 AM
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MERLIN2021
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P0178 Fuel Composition Sensor Circuit Low
P0179 Fuel Composition Sensor Circuit High
Aug 13, 2007 at 7:45 PM
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GBGTEXAS
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  • 46 POSTS
[quote:4d0348931d="merlin2021"]P0178 Fuel Composition Sensor Circuit Low
P0179 Fuel Composition Sensor Circuit High[/quote:4d0348931d]
Thanks for your help!
Aug 13, 2007 at 9:53 PM
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