Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Purpose
An
Exhaust Gas Recirculation (EGR) system is used in order to lower Oxides Of Nitrogen
(NOx) emission levels. The EGR system accomplishes this by feeding small amounts of exhaust gas back into the combustion chamber. High combustion temperatures cause NOx. Combustion temperatures are reduced when the
air/fuel mixture is diluted with the exhaust gases.