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Old 11-07-2019, 05:01 PM   #3
88Ironduke
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Join Date: Jul 2010
Location: Willingboro, NJ
Posts: 489
Re: Codes :"Bank 1 Lean Bank 2 Lean"

Agreed, make sure the exhaust system is tight. if its both banks you may7 be chasing a vacuum leak. It can be anywhere aft of the MAF sensor thru the intake, hose assemblies etc. A smoke test on the intake system might be a good course of action.

Paul
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