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  1. I4/I5 Engine & Drivetrain
    There is obviously a larger number of poeple who are not gettting the mileage they should out of their canyons. And there seem be also be a number of people who think these engines run rich, some have even claimed unburned fuel in the exhaust. Could this be changed by spacing the MAF out of...
  2. I4/I5 Engine & Drivetrain
    Ok so for the last month or so I've been trying to remedy a P0171 (System too Lean Bank 1) code that keeps coming on. I have an 05 3.5L Colly with a K&N FIPK2 57 Series intake. I am also getting a P0455 (EVAP Emissions System Leak (Large))every once in a while but much less often than the P0171...
  3. Engines/Performance/Tech Questions
    Ok here is my issue my 2005 3.5L is throwing a P0171 (System Too Lean Bank 1) and a P0455 (Evaporative Emissions System Leak (Large Leak)). I thought it could be my evap solenoid so I took it off and cleaned it and cleared the codes. Since then, about two weeks now, the P0455 has stayed off but...
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