KEEP YOUR L5P'S MAP SENSOR CLEAN.
The EGR (Exhaust Gas Recirculation) and PCV (Positive Crank Case Ventilation) systems within your engine play an important role in managing combustion temperature, reducing NOx emissions, and ensuring that harmful gasses are not released into the atmosphere. These systems draw in unburnt exhaust gasses and oil vapor into the combustion chambers, leading to lower combustion temperatures and reduced NOx production.
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