Generation III Internal Engine 1997-2006 LS1 | LS6
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Running Rich on the pass. side

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Old 12-09-2005, 06:59 PM
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Default Running Lean on the pass. side

Swapped my spark plugs today and all my plugs on the passenger side came out looking like I was running lean on that side. Driver's side looked rich/normal.
Now the only thing I can think of that might be causing this is that when I did my cam install and dropped a pass. side lifter... while I had the head off ... I cleaned the carbon off the faces of the pistons. Could that small amount of volume difference be causing the leaner conditions?

Last edited by FstBlkz28; 12-09-2005 at 09:41 PM.
Old 12-09-2005, 11:55 PM
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swap o2's and see if it happens on the other side. thats what i would do first.




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