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Chasing a P0300
Update: I installed a new MAF and both upstream 02 sensors - truck runs like a champ now instead of a hobbled nag. Hope this info. helps someone in the future.- Newt Watson
- Post #39
- Forum: Engine & Drivetrain
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Chasing a P0300
I've checked for vacuum leaks and intake gaskets. That was my first thought on the issue. Have not looked at fuel trims. A bad MAF was the iissue with another vehicle I own last year. I will install a new one and update the forum.- Newt Watson
- Post #37
- Forum: Engine & Drivetrain
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Chasing a P0300
I am having the exact same issue with a 2005 2500 XL 6.0 4WD. The CEL will flash while idling and then will clear itself when truck is up to speed. P0300 and lean mixture code everytime. When truck is not idling, it runs like a champ. When idling it is bucking and missing. Cleaned MAF...- Newt Watson
- Post #31
- Forum: Engine & Drivetrain
