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Re: My K5 Blazer Story.
What software are you using? HP tuners or EFI live? What PCM do you have? I can't recall... Also do you have an OBD2 scanner hooked in? Setting SES lights?
My L29 was setting trouble codes for rich condition bank 1 and bank 2 before I had it tuned. On my little bluetooth scanner, I was consistently at 25% fuel being pulled out in the long term trim, but I still got decent gas mileage (11 mpg on a long trip), the adjustment from O2 sensors was just fighting the tune.
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