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View Full Version : What does the EGR valve do?



blkthndr
10-28-2002, 07:14 PM
This valve recirculates a small amount of exhaust gas into the engine through
the intake manifold. This lowers the combustion chamber temperatures to
minimize the emission of Nitrogen Oxides at part throttle. Because EGR causes
some loss of power, the EEC changes the fuel and spark curves to compensate.