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I'm looking for a base tune bc I don't know what they used to tune it or who tuned it

I have a 05 silverado worked to a 6.2 supercharged lsa I am having problems with it running rich throwing codes po220 po175 po172 an when I get a about 20 mph it starts spitting a sputtering when...

Ok will start a new thread an put down more info using a 5.3 ecm 93 pump gas thank you for you help

I am completely a newbie an I do apologize so sorry I was trying to get in touch with you but didn't know how to contact you directly