Operation CHARM
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Express 1 Ton Van V8-5.7L VIN R
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Scan Tool Data Definitions - Powertrain Systems
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Rich/Lean BN 1
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Rich/Lean BN 1
(Rich/Lean)
The Rich/Lean Bn 1 parameter indicates the oxygen content in the exhaust gases in bank 1. Rich indicates low oxygen content, lean indicates high oxygen content.