X18XE1 engines have an EGR i blocked mine but my car ran like **** cutting out at junctions when it warmed up. as far as i know the Z18 engines dont have EGR
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Astra Owners Network
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A forum community dedicated to Vauxhall Astra owners and enthusiasts. Come join the discussion about performance, classifieds, clubs, modifications, troubleshooting, maintenance, and more!