PO300 and PO301 codes...

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12-08-2018, 09:40 PM

KennyB

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Join Date: May 2009

Posts: 59

PO300 and PO301 codes...

2011 gmc sierra < I am getting p0301 and p0300 codes. I have a code reader and if I clear it, it does come back but not every time I run the truck.Had to have the injectors cleaned at 10,000 miles, now there is 62,000, they told me it was because of the ethanol in the gas but the truck is supposed to be flex fuel. Called a local auto service co. they said they didn’t do injector cleaning but suggested using BG44K. Should I go to a service station and have it done or try the BG first?