lean both banks
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P0174 and P0171 Both Sides Running Lean
I have a 2006 Denali with the 6.0 LQ9. Roughly 245k on the clock, but it has been maintained and taken care of very very well. These two codes have persisted, but the truck doesn't respond like its running lean. throttle response is normal, power is normal, idle is normal, fuel mileage doesn't...- Gstepha0
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- 6.0-liter engine denali lean both banks p0171 p0174
- Replies: 2
- Forum: Engine & Drivetrain
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Lean both banks w/ no apparent air leaks
Let me start by apologizing for asking about a Silverado, but I am stuck. 2007.5 Silverado LTZ Crew Cab 5.3 NNBS (GMT900) Lean both banks, no external air leaks found and averaging 25% fuel trim on each bank. I’m Ross and I’m a parts changer. (Hi Ross!!!) I’m ashamed for not figuring this...- ross reynolds
- Thread
- lean both banks
- Replies: 14
- Forum: Engine & Drivetrain
