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Old 04-13-2013, 08:57 PM   #18
Scooby Specialist
Member#: 321409
Join Date: May 2012
Chapter/Region: SWIC
Location: Arrey, NM
2003 Big Effing Van
7.3L powerstroke diesel


Originally Posted by gfv355 View Post
The car honestly feels like its running slightly lean. Also after pulling the spark plugs they were indicative of a lean condition. i changed the fuel filter already and noticed a problem with the car smelling of un-burned fuel on cold days generally a few minutes after startup.
Wild Guess...but your cat may be breaking up. That would explain leaning out along with triggering knock sensor.
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nmlittlebigman is offline   Reply With Quote