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Does a 2.2l ecotec engine have an egr valve?

Yes, the 2.2L Ecotec engine has an EGR (exhaust gas recirculation) valve. The purpose of the EGR valve is to reduce the amount of nitrogen oxide (NOx) emissions produced by the engine. It works by recirculating a portion of the exhaust gas back into the intake manifold, which lowers the combustion temperature and reduces the formation of NOx.