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Getting codes p0172;p0175 on a 09 silverado

(2009 Chevrolet Silverado 1500)
in Murphysboro, IL on October 04, 2013
Im getting two codes p0172-p0175 on a 09 silverado ext cab eng. code 0. any ideas
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Popular Answer
on October 05, 2013
Possible restricted air filter, maf sensor or circuit, fuel pressure regulator, injectors etc... Needs to be checked with a REAL scanner.
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